Friday, May 29, 2015

What is the difference between Single Action, Double Action Only and Double Action/Single Action

In our last post, we studied the differences between hammer fired and striker fired weapons. In today's post, we will study a related topic, the difference between Single Action (otherwise called SA), Double Action Only (otherwise called DAO) and Double Action/Single action (otherwise called DA/SA or SA/DA). 

The differences between these three has to do with what happens when you pull the trigger of the weapon.

In a single action weapon, only one thing happens when you pull the trigger: it releases the hammer or striker to fire the weapon. This mechanism was used by early revolvers, such as the Colt Paterson, Walker Colt, Colt Single Action Army (a.k.a. the Peacemaker) revolver etc. and is still used by many modern rifles, shotguns and semi-automatic pistols.

Colt Single Action Army revolver. Click on the image to enlarge. Public domain image.

To fire a weapon like the example above, the user first cocks the hammer by pulling on the spur at the back of the hammer with the thumb, until it locks into position. Then, when the user pulls the trigger, it releases the hammer, which then falls back down towards the cylinder with considerable force, due to a spring connected to the hammer, and thereby fires the weapon. If the hammer is already down, then pulling the trigger does nothing. To fire another round with this revolver, the user needs to re-cock the hammer back again before pulling the trigger. The key thing to note with single actions is that if the hammer (or striker) is down, then pulling the trigger does nothing.


The above video from hickok45 shows a Colt single action revolver being used. Notice how he pulls back the hammer before every shot, to cock it. Also note that the act of pulling back the hammer also rotates the cylinder to bring the next cartridge under the hammer. The user cannot fire this weapon by only pulling on the trigger.

Some semi-automatic pistols like the Colt M1911 and Springfield XD are also single action weapons. The Colt M1911 is hammer fired and the Springfield XD is striker fired, but they are both single action.
In such weapons, the user first inserts the magazine and then either pulls back the hammer manually with the thumb, or racks the slide, which chambers the first round and also cocks the hammer or striker. When the trigger is pulled, it releases the hammer or striker, which fires the weapon. Then, the weapon uses some of the recoil energy to move the bolt and slide backwards, which ejects the old cartridge, loads a new cartridge from the magazine and most importantly, it also cocks the hammer or striker automatically, so the user doesn't need to do that again manually. Then, all the user has to do to fire another shot is to pull the trigger again, as the weapon is already cocked and so on, until the weapon is empty. However, if the user decides to lower the cocked hammer (or striker) manually (some weapons have a special decocking lever to do this), then pulling on the trigger after this will do nothing, because a single action weapon only does something if the hammer or striker is cocked first. Therefore, to resume firing again, the user has to pull back the hammer manually once, before pulling the trigger.

Most modern rifles and shotguns are also single action.

Since the weapon is already cocked, the trigger pull force required to discharge it is typically small and a force of around 3 to 4.5 lbs. (about 1.3 - 2 kg.) is enough to release the hammer or striker.

With a Double Action Only (DAO) weapon, pulling the trigger does two things: it first pulls the hammer (or striker) back to cock it and then pulling the trigger further releases the hammer or striker. Therefore, two actions happen on the same trigger pull, which is why it is called double action. The force required to operate the trigger is much higher than single action weapons, typically about 10 to 12 lbs. (about 4.5 to 5.5 kg.). This is because the trigger has to cock the hammer or striker against spring pressure and more force is required to do this.

The first example of a double action only weapon was the Adams revolver invented in 1851.

An Adams revolver. Click on the image to enlarge.

Note that the Adams revolver has no spur on the hammer, therefore the user cannot pull it back with the thumb. The good news is that the missing spur means that it cannot get snagged by accident on anything and it is also possible to fire this revolver much faster than the Colt single action revolver, since there is no need to cock it each time before pulling the trigger. The bad news is that the trigger is harder to pull and due to the larger force needed, there is a tendency to shake the revolver when pulling the trigger, which makes it less accurate.

Some modern day semi-automatic weapons and revolvers still use a DAO action, Examples include the SIG P250 pistol, the Ruger SP101 revolver, the Taurus 24/7 pistol, Smith & Wesson Bodyguard revolver etc.


Notice how there is no spur at the back of this revolver, so the only way to cock this weapon is to pull the trigger. At around 1:00 of the video, you can clearly see the hammer being moved backwards initially as the trigger is being pulled and then released as the trigger is pulled further along.

From all the above, we see that double action weapons only need one trigger pull to both cock and fire the weapon, thereby being faster to fire, but they need more pull force on the trigger than single action weapons, which leads to the weapon shaking more when the trigger is pulled. Therefore, there is another alternative, which combines the best of both: the double action/single action also known as DA/SA, single action/double action or SA/DA.

With a double action/single action firearm, it can be fired in both modes. One of the first examples of this was the Beaumont-Adams revolver, which was invented in 1865 by Lieutenant Fredrick Beaumont of the British Army. He was a veteran of the Crimean war and had used the Double Action Only Adams revolver there. After the war, he decided he was going to improve the Adams design and invented his revolver.

A Beaumont-Adams reovlver Click on the image to enlarge. Public domain image.

With this design, the user has two options. When the hammer is down, the user can pull the trigger, which cocks the hammer and then releases it, just like a double action only revolver. Doing this takes more trigger pull force, as expected. The user also has the option to cock the hammer by pulling the spur at the back of the hammer, just like a single action weapon. Then, there is less force required to pull the trigger, as the hammer is already cocked,

A DA/SA weapon combines the best features of both the single action and the double action weapons and gives the user a choice of which mode to fire the weapon with. Some modern weapons that use this system include the Beretta M9 pistol, which is the standard sidearm of the US military, the Colt Python revolver, SIG Sauer P-220 pistol, the Heckler & Koch USP pistol, the Czech CZ 75 pistol etc.

Heckler & Koch USP pistol. Click on the image to enlarge.
Image licensed under the Creative Commons Attribution-Share Alike 3.0 license by Miroslav Pragl

When the trigger is pulled with the hammer down, it requires a force of something like 10.5 lbs (4.5 kg.) to discharge the firearm, but if the hammer is already cocked, it requires a force of only about 4.5 lbs (2 kg.) to do it.

With a semi-automatic weapon like the pistol above, if the weapon is not cocked after the magazine is loaded, the first trigger pull will be heavier, since it has to cock the weapon first. But after the first cartridge is fired, the weapon uses some of the recoil force to cock itself automatically, which means the subsequent trigger pulls do not require as much force. The user can also cock the hammer manually using the thumb to pull it back, or cock it by pulling back on the slide. Many pistols also have a de-cocking lever to safely lower the hammer back down to double-action mode.

Some people like to carry the weapon de-cocked, because the first trigger pull needs much more force and therefore, it is less likely to be pulled accidentally when the user is carrying the weapon in a holster. Other people find the fact that the first pull needs more force than the others a little confusing, so they carry the weapon cocked and enable the weapon safety devices instead.

Finally, we have some weapons that cannot be exactly classified as either double-action or single-action. Examples of this would be Glock and Kahr pistols. As we saw in our previous post, which showed an animated image of a Glock pistol in action, when the slide is pulled back, it pulls the striker back and locks it at an intermediate position where the spring is only at partial tension. Pulling on the trigger pulls the striker back first (so the spring reaches full tension) before releasing the striker, much like a double action weapon does. However, unlike a double action weapon, if the striker is not cocked at the intermediate position first, pulling on the trigger does nothing (behaving exactly like a single action weapon).

A Glock 17 pistol. Click on the image to enlarge.

As you have probably already guessed, the trigger pull force for a weapon like this is between that needed for a single action and a double action weapon. For instance, a standard Glock trigger requires about 5.5 lbs (2.5 kg.) to operate it and a Smith & Wesson M&P needs about 6.5 lbs (2.95 kg.).

The video below contains some good examples that show the differences between the various mechanisms:


Happy viewing!


Monday, May 25, 2015

Hammer Fired vs. Striker Fired

In the world of modern firearms which use centerfire cartridges, there are two major types of mechanisms used to trigger the cartridge primer. One uses a hammer and another uses a striker. Therefore, mechanisms that use a hammer are called hammer-fired and the ones that use a striker are called striker fired. As you can guess, each mechanism has its own group of supporters. In today's post, we will study what this all means.

In a hammer fired mechanism, the hammer is a heavy piece that is allowed to rotate about a pivot point. When the hammer is cocked, it compresses a spring. When the trigger is released, the spring pushes the hammer and forces it to rotate forward. The end of the hammer strikes the back end of a firing pin, which is a thin steel pin with a hardened tip. The front end of the firing pin strikes the primer of the cartridge, thereby detonating it. The image below shows how this works.


In some revolvers, the firing pin is attached to the hammer directly.

Firing pin attached to the hammer of a Smith & Wesson Model 13 revolver.
Image licensed under Creative Commons Attribution-Share Alike 3.0 Unported license.

In either case, the key part of the mechanism is a rotating hammer mechanism. Here's another animation showing the same concept.

The main thing that we conclude after looking at all the images above is that a hammer-fired weapon is a rotating type mechanism.

In contrast to this, striker fired systems operate in linear fashion. The striker is a part that is a bit heavier than a firing pin and it is directly connected to a spring. When the firearm is cocked, the striker is moved against a linear spring and held in position. When the trigger is released, the spring forces the striker forward with enough energy to detonate the primer upon impact. The animated image below shows how this works.


The striker is the long part in the back of the gun that looks like this:


It should be noted that the animation example for a striker fired weapon shows the firing mechanism of a Glock pistol. When a Glock is cocked, the striker is moved back and held under partial spring tension by the trigger mechanism and safety devices. As the trigger is pulled, the striker is initially pulled back till the spring reaches full tension and then the striker is released. In other pistol models, such as Springfield XD or Smith & Wesson M&P models, the striker is already held at full spring tension when it is cocked. Pulling the trigger in such firearms merely releases the striker and allows it to fly forward

From the above images, we see that hammer fired mechanisms use a rotational force to detonate the primer, whereas striker fired mechanisms use a linear force to do it.

Striker fired mechanisms tend to have fewer parts than hammer fired mechanisms and are therefore simpler. However, they take up a bit more room. This is why firearms that don't have bolts, such as revolvers, use a hammer-fired action. Revolver and many types of single-shot action firearms generally don't have the room to accommodate a striker mechanism.

Strikers are commonly found in many modern semi-automatic pistols, bolt action weapons and shotguns. In fact, the first striker fired weapon invented was a shotgun invented by Daniel LeFever in 1878. Another example of a striker fired weapon is the Czech vz.58, which we studied earlier (contrast this with the similar looking AKM rifle, which uses a hammer fired mechanism). Striker fired pistols started becoming popular in the 1980s, when Glock started using them on their pistols. However, it must be noted that Glock weren't the first to use it on pistols either: John Browing used it in the .25 caliber Model N pistol and the H&K P7 is striker fired as well. Nevertheless, once Glock started becoming popular, other manufacturers also started using the same idea on a larger scale and now you have several pistol models, such as Smith & Wesson M&P, Springfield XD, Ruger SR9 etc. However, there are some famous pistol models that use a hammer fired mechanism instead. Examples include the Colt M1911, Browning Hi-Power, Beretta M9 etc.

A striker fired mechanism doesn't have an exposed hammer, so it cannot get caught in clothing, shrubs etc. The fact that it has fewer parts means easier maintenance as well. Another positive is that it has a consistent trigger pull for every shot (in contrast to double action/single action hammer fired mechanisms, where the trigger pull force is different depending on whether the firearm is working in single action mode or double action mode). Striker fired mechanisms generally have a consistent trigger reset as well.

On the other hand, if there is a malfunction on a striker fired weapon because the primer didn't detonate, the only option is to eject the cartridge and try the next one. With a hammer fired firearm, it may be possible to try again on the same cartridge (on models that provide this second-strike capability). Hammer fired guns also generally impact primers harder than strikers do, thereby giving a better chance to detonate them. It is for these reasons that many military forces prefer hammer fired weapons. For example, the US military's choices of weapons: Colt M1911 pistol, Beretta M9 pistol, M1 Garand, M14 rifle, M16 rifle, M4 carbine etc. are all hammer-fired.

The video below shows some of the advantages and disadvantages of each system:


As you can see, each mechanism has its own group of fans that argue about which is better. Happy viewing.

Thursday, May 7, 2015

Weapons of Pirates

In our last post about Queen Anne pistols, we mentioned that they were carried by some pirates, notably the famous pirate captain, Edward Teach, better known to the world as "Blackbeard". In today's post, we will study the world of the pirates and the weapons they carried.

First, pirates have been around practically since man learned to build boats. Pirates have been mentioned in ancient Babylonian and Egyptian texts dating back to 1400 BC. The Greeks and Romans battled pirates in the Mediterranean sea. In fact, the word "pirate" is from the Greek word, pieraomai which means "attempt" (i.e. "attempt to rob for personal gain"), which morphed to the Greek word pierates which means "bandit" or "brigand", from which we get the Latin word pirata, from which we get the English word "pirate".  In the middle ages, the Vikings roamed the northern seas, but also sailed as far south as North Africa and Italy and sailed up rivers all the way up to the Black sea. The South China sea and the area between Malaysia and the Indonesian islands have had incidents of piracy since about 900 AD. In modern times, we have pirates off the coast of Somalia and in the strait of Malacca.

However, we will concentrate mainly on the weapons used by pirates during the so-called "Golden Age of Piracy", which happened around 1650-1730 AD. This was around the time that various European powers were competing with each other to build colonies and trade routes around the world. During this time, several notorious pirates were based off the Caribbean islands, but there were others who sailed around the coast of Africa and even as far as India. In fact, the biggest robbery ever made during the Golden Age of Piracy was by English pirate Henry Every (also called Henry Avery or Long Ben Every), who captured a couple of the Indian Mughal emperor Aurangzeb's ships in the Arabian sea, sailing back from Mecca to India loaded with jewels. With this single act of piracy, Henry Every became the richest pirate captain in the world, but he is not as well known as other pirates such as Blackbeard, Calico Jack Rackham, Bartholomew Roberts (a.k.a Black Bart), Henry Morgan, Captain Kidd etc. We will study the weapons used by pirates living in this era. By the way, not all pirates were English. Many were Dutch, French, Spanish, Portuguese, Danish, Swedish, Irish, Scottish, Welsh, German, American, Italian, Moors, Algerians, Africans, Turks, Arabs, Native Americans, Chinese, Malays etc.

It may come as a surprise to readers to find out that during the Golden Age of Piracy, many pirate ships actually operated more democratically than most countries. Every man on board a pirate ship had an equal vote and the pirate captain was elected by the members of the ship. If the pirate captain didn't perform his duties well, he could be voted out of his position as well. The quartermaster was also voted into power by the crew. One more interesting thing was that the pirate captain only commanded the ship when they were in combat. If they were not in combat, it was the quartermaster and not the captain, that decided where the ship would sail next. Pirate crews were generally promoted based on merit (unlike European navies, where most officers bought their positions). Pirates also came from different countries, races and religions, but they all had an equal right to vote and an equal share of the treasure. At a time where most people worked as slaves or as indentured servants, pirates actually signed work contracts when they joined a pirate ship. The contracts specified how much share of the plunder each man would receive (skilled sailors received more than unskilled men, as did specialized jobs such as captain, quartermaster, carpenter, surgeon, navigator, boatswain, gunner etc.), compensation to be paid in case a man was injured  or killed while performing his duties (workman's injury compensation in the 17th century!), how prizes were to be divided, awarding of bonuses for good work, the rules of conduct expected of each man and the penalties that would occur, if a man was to break the rules.

In many Hollywood movies, we see pirates fighting each other with sabers and showing some real fancy sword fighting skills. And while pirate ships are approaching merchant ships, they engage in heavy gun battles with cannons until the pirates can swing over to the other ship on ropes. So, is what we see in Hollywood movies really how pirates fought? The answers are very different.

Some of the laws and rules followed by pirates have been recorded by historians. From the contract signed by pirates who sailed under Bartholomew Roberts, we have the following section:

Article V - Every man shall keep his piece, pistols and cutlass at all times, clean and ready for action.

So what does the above sentence mean, particularly the three words in bold font? It gives us a clue as to what weapons pirates actually used. Notice that the cutlass (a short sword) comes third in the list, while "piece" is listed first. We will see what this means in the next few paragraphs.

First, let's deal with the question of swords. Pirate ships and merchant ships were very crowded at all times, with boxes and ropes all over the deck. Therefore a long sword was usually not very useful in combat aboard a ship, because there was usually no room to swing a long sword properly. Secondly, it takes a long time to train a person to use a sword well and only members of the aristocracy could afford to take sword fighting lessons (i.e. fencing lessons). Only a rich person could afford to buy a high quality long sword anyway. Third, long swords are heavy and can make a man tired much more quickly. Therefore, real pirates usually carried a short sword, such as a cutlass, which was much more suitable for fighting in close quarters. Alternatively, they carried axes or knives, since both were cheaper than swords and could also be used well in crowded spaces. However, none of these bladed weapons were usually their first choice of weapon either.

Now let's talk about cannon on ships. Most pirate ships were relatively small and could therefore carry small cannon only. Pirates would usually try to capture ships with as little damage as possible, so that they could take the captured ship and its supplies for themselves. So when they fired cannon at merchant ships, they usually fired small caliber shot to try and disable the crew, or fired chain shot to try and destroy some of the sails, to slow the ship down. They would also shoot warning shots away from the target, to try to get the merchant ships to surrender quietly. They usually never shot large solid cannon balls directly at ships, because this could cause the ship to sink before they captured it. If possible, pirates preferred to capture ships as undamaged as possible, so that they could use them in their own fleets.

Now let's talk about the word "piece" that we saw earlier. The word "piece" refers to a "fowling piece" or a "hunting piece", i.e. a musket used for hunting birds and animals. In general, a "piece" in pirate language, could refer to any long arm, whether musket, rifle, arquebus or blunderbuss. These were usually the first weapon of choice for pirates.

The musket was generally available to the common man during the Golden Age of Piracy era, so it was pretty easy for pirates to get their hands on them. A well trained pirate crew could injure or kill several defenders from longer ranges, so that there would be less resistance by the time they boarded the ship. They would target officers, sailors operating the sails and those near the gun ports. Well aimed musket fire in volleys could inflict maximum damage to their opposition, without sinking their ship, which is why pirates preferred using muskets to cannon.

A typical flintlock musket. Click on the image to enlarge. Public domain image.

These muskets were originally designed to hunt bird and animals and were pretty sturdy, with long heavy barrels. While many of them were originally smoothbore, they were still capable of relatively accurate fire. Pirates would sometimes load them with one larger ball about the size of the barrel bore and two smaller balls about half the bore size. This was done to increase the probability of hitting the target. Successful pirate crews carried multiple muskets for each pirate, up to four or five per pirate, and they would all be loaded and ready to go, as they approached their prey. This allowed the pirates to keep shooting rapidly at their prey as they approached it. They would also work in teams, where one pirate would fire muskets, while the other pirates would reload them.

The musketoon is a shorter barreled version of the musket and were more preferred, because they were easier to handle in confined spaces, such as those found on ships. Some musketoons had flared barrels like the next weapon, the blunderbuss, although the blunderbuss was generally even shorter.

A Blunderbuss. Note the flared muzzle.

The original term for this weapon was donderbuss and this name appears to be Dutch. The word "donder" means "thunder" and "buss" means "pipe" in Dutch and German languages. They were generally made with brass or bronze barrels, since these resisted corrosion from seawater better than iron barrels. The flared muzzle allowed the user to quickly pour powder and shot down the barrel and load the weapon easier on a moving platform. Pirates would load blunderbusses with multiple shot pellets, scrap nails, rocks etc., and use them at closer ranges. On a crowded deck, a single shot could disable a group of enemies, so they were used to clear a path so that the pirates could board.

As they boarded their enemy's ship, pirates often carried multiple pistols with them. Many of these were single shot flintlock models and quite a few of them were built with flared barrels like a blunderbuss. to enable quicker reloading.


These pistols often had decorations around the muzzle that looked like a dragon's mouth and hence, these pistols were called "dragons". Military troops that carried such pistols were called "dragoons" and the pistols were then referred to as "dragoon pistols".

There were also general purpose flintlock pistols that many pirates carried, as these were also easily available.

A typical British flintlock pistol designed for naval service. Click on the image to enlarge. Public domain image.

In addition to these, some pirates also carried Queen Anne pistols, which we saw in the previous post. This is because Queen Anne pistols were designed to hold the ball inside the barrel without any wadding and there was much less risk of the ball or powder falling out of the pistol.

These pistols were used practically at point-blank range. Since they were all single shot models, pirates usually carried several of them, either tied around their necks with short pieces of rope, or tucked into a belt. The butt of the pistol handle was often a heavy brass plate (as the two examples above show), so after the pistol was fired, the user could turn it around and use it as a club.

In some cases, they would carry multi-barrel pistols. Some of these were just pistols with multiple barrels and separate triggers to fire each barrel separately. Other models featured a single trigger and multiple barrels that could be turned into position as needed.

A pistol with two separate barrels, two flintlocks and two triggers. Click on the image to enlarge.

An over under pistol with two barrels, two pans, but a single flintlock and single trigger. Each barrel was rotated into position by hand and then fired.

There were also volley fire weapons that could fire multiple pellets in different directions simultaneously, so as to spread the damage with a single shot. An example of such a pistol is shown below.

A duckfoot pistol. Click on the image to enlarge. Public domain image.

The example shown above is a duckfoot pistol using a flintlock firing mechanism. It is called a "duckfoot" because it resembles the foot of a duck. In general, multi-barrel pistols were less reliable than single barrel pistols and therefore, they were not frequently used.

Finally, there was the pirate short sword, the cutlass. This was usually the third weapon of choice and pirates usually didn't use them unless they really needed to. Forget the long drawn out sword battles shown in Hollywood movies, real pirates kept the fighting time down to a minimum. Real pirates would carry a cutlass with one hand and a pistol with the other. The cutlass would be used to block the opponents sword, while the pirate's other hand would fire the pistol at point-blank range. Sometimes, the pirate would use a combination weapon that combined a cutlass and pistol together.

A combination of cutlass and pistol. Click on the image to enlarge.

This allowed the pirate to both shoot and cut with a single arm, while the other arm could carry another pistol or a grenade or some such object.

Besides these three weapons, pirates often carried axes, knives, grenades, stink pots etc. However, most pirates preferred using (in order of preference): long guns (such as muskets, rifles and arquebuses), close range powerful shotgun type weapons (musketoons, blunderbusses), pistols and finally swords, axes and knives. Therefore, the Hollywood myth of pirates preferring to use swords and fighting long duels on decks with swords is completely false. They preferred using firearms to bladed weapons.

Now, let us look at a curious paragraph in the contracts signed by pirates that sailed with the pirate captains Edward Low and George Lowther around 1720 AD.

Article VIII - He that sees a sail first, shall have the best Pistol or Small Arm aboard of her.

As you can see, the contract clearly states that the first pirate to see the sail of a merchant ship, would be rewarded with the best firearm found on the captured ship, not the best sword. Therefore, they clearly valued firearms more than swords.

Monday, May 4, 2015

Queen Anne Pistols

In today's post, we will look at a type of pistol that was around in the late seventeenth and eighteenth centuries: the Queen Anne pistols (otherwise called turn-off pistols). These were generally in use from around 1650 to 1780 AD.

First, we will investigate the origin of the name. The first models of this type of pistol date back to around 1650 or 1660 AD in England, but they really started becoming popular during the reign of Queen Anne of England (she was born in 1665 AD and ruled England from 1702 to 1714 AD). This is why they are popularly called as Queen Anne pistols.

So what makes these pistols different from other pistols of the era? There were several features unique to these pistols which we will study:

  1. The breech and lock of a Queen Anne pistol were forged together as a single piece, a feature that did not become common in firearms until the middle of the nineteenth century.
  2. Unlike most weapons of this era which were loaded from the muzzle, most Queen Anne pistols were loaded from the breech.
  3. The barrel of a Queen Anne pistol was screwed on to the chamber. This was one of the key distinguishing features of a Queen Anne pistol.
  4. The barrel was tapered from the breech to the muzzle.
  5. The caliber of the bullet ball was made larger than the bore of the barrel. Since these pistols were loaded from the breech, there was no need to use a ramrod or wadding, unlike most other firearms of the era.
  6. Though early model barrels were smoothbores, later models featured rifled barrels for better accuracy.
Like most firearms of that era, these pistols used flintlock firing mechanisms. The barrels of most models of Queen Anne pistols were shaped like miniature cannon barrels. 

A Queen Anne Pistol. Click on the image to enlarge.
Image is  licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license by Trulock at Wikipedia

Queen Anne type pistol made by Galliard in Lausanne, Switzerland around 1760. Click on the image to enlarge.
Image is  licensed under the Creative Commons Attribution-Share Alike 2.0 France license.

To load this type of pistol, the user would first unscrew the barrel from the chamber (this is why they are also called turn-off pistols). The chamber is designed to be long and narrow, with a cup on top. After unscrewing the barrel, the user would load some black powder into the chamber and then place a bullet ball on to the cup. Then the user would screw the barrel back in place and tighten it with a key. Notice that the barrel is tapered from the breech to the muzzle. This is a deliberate feature. The diameter of the bullet is larger than the diameter of the barrel at the breech, therefore it cannot roll out through the barrel. The bullet stays in place on the cup and holds the black powder in the chamber, without using any wadding.

When the user pulls the trigger, the flintlock mechanism ignites the black powder in the chamber, which burns and produces high-pressure gas in the chamber. The hot gases push the bullet out of the cup and through the barrel. Since the barrel is tapered from the breech to the muzzle, the bullet is deformed as it is pushed out of the barrel. The bullet forms such a tight seal within the barrel that the high pressure gas gives the bullet much more velocity than muzzle loaders of that era.

In some early models, the barrels were smoothbore, but later models began to feature rifling in the barrel, in order to improve accuracy. This meant that they had higher velocity and better accuracy than most other pistols of that era. Although some infantry officers carried them for close range fighting, these were not used much as military weapons, because they took longer to load than muzzle loaders and could not be easily re-loaded in the middle of combat. Therefore, the majority of purchases were by civilians. 

These pistols originated in England, but also spread to France, Switzerland etc. Several of them were used by Americans during the American Revolution. It is thought that most of these came into American hands after the Siege of Boston. 

The nice thing about such pistols was that most of them were made in sizes that could be easily stowed in a coat pocket, or tucked into a belt, thereby allowing them to be easily concealed. This is why they became popular among civilians as a self-defense weapon. Many were owned by rich people and therefore, quite a few examples are highly decorated with silver and gold engravings.

These pistols were also popular with pirates, The infamous pirate, Edward Teach, better known to the world as "Blackbeard", has been depicted in several portraits, carrying a number of these pistols around his body.

The pirate captain Edward Teach, alias "Blackbeard". Notice the pistols tucked into his belt.

The character, Jack Sparrow, in the Pirates of the Caribbean series of movies, also carries a Queen Anne type pistol and hands it to Angelica in the movie, Pirates of the Caribbean: On Stranger Tides.

Now, we present a small movie showing the features of this pistol:


Happy viewing!


Saturday, May 2, 2015

More Developments in Lever Actions - The Birth of Two American Legends

Where we left off in our last post, the company formed by Horace Smith and Daniel Wesson was off to a bad start, as the lever action firearms that they made did not sell very well. Their chief financier, Courtlandt Palmer, had reorganized Smith & Wesson into the new Volcanic Army Company and managed to convince another group of investors (including Oliver Winchester) to buy their company. After this, Courtlandt Palmer got out of the firearms business completely, Horace Smith went back to his home in Springfield, Massachusetts, after selling his remaining shares in the company. Daniel Wesson stayed on as a factory manager at Volcanic Arms for 8 more months, before leaving as well. Benjamin Tyler Henry also left and went back to his old job at Robbins & Lawrence.

After this, Oliver Winchester moved the Volcanic factory to New Haven, Connecticut, where he already had a successful shirt manufacturing business. The Volcanic company nearly went bankrupt in 1857, due to poor sales. Oliver Winchester managed to acquire the remaining shares of the company and reorganized its assets under a new company called the New Haven Arms company. Meanwhile, he kept the patent rights of the Volcanic Arms company under his own name and licensed the rights to manufacture them to the New Haven Arms company. He also managed to convince 11 other investors to invest in this new company (7 of these investors owned shares in Volcanic as well), while retaining a controlling majority of shares.

In the beginning, sales were rather slow and the company was mainly kept running, due to personal funding by Oliver Winchester and his partner in the New Haven Shirt Manufacturing company, John M. Davies. Around April or May 1858, he managed to convince Benjamin Tyler Henry, who had gone back to Robbins & Lawrence, to rejoin and become the new factory superintendent. Henry had worked with Horace Smith and Daniel Wesson at various stages of development of the previous Jennings and Smith-Jennings rifles, so he was fully aware of the advantages and disadvantages of their products. He was convinced that while the lever-action principle was a good idea, the ammunition could be improved. Therefore, with the backing of Oliver Winchester, Henry set upon improving the metallic cartridge and initially produced a better cartridge in .38 caliber in 1859 and produced a few sample carbines and pistols using this cartridge.

Click on the image to enlarge.

However, Oliver Winchester decided that .38 caliber firearms would probably not sell very well and wanted a bigger cartridge. He also recognized that the future of lever-action firearms lay with rifles rather than pistols and therefore directed the company to concentrate on rifle development. With Winchester's backing, Henry came up with a .44 caliber rimfire cartridge and a rifle to fire it, in 1860.



Due to Oliver Winchester and John Davies expanding their shirt manufacturing factory in the beginning of 1860, they could not fund the re-tooling of the New Haven Arms factory to immediately manufacture the Henry design. Instead, they settled on making 3000 Walch pocket revolvers in .31 caliber for the Walch Arms company owned by Cyrus Manville of New York. By April 1861, Winchester's finances had improved so that he could fund the re-tooling process and the company started to deliver the new Henry rifles by 1862.

A Henry Rifle. Click on the image to enlarge.
Image licensed under the Creative Commons Attribution-Share Alike 3.0 Unported by Hmaag

Sales were initially slow, but then the Civil War started and demand for the Henry rifle increased. It is interesting to note that the US Government only purchased about 3140 Henry rifles before the war and 1731 Henry rifles during the war, but more of them were purchased by the soldiers privately, using their own money. The official repeating rifle of the US military was the Spencer rifle, which was also a repeating lever-action weapon and much more sturdy than the Henry rifle. However, despite the relative fragility of the Henry rifle and its lesser power than the Spencer rifle, it had two big advantages over the Spencer rifle:
  1. It had a larger magazine capacity (16 cartridges, compared to the Spencer's 7 cartridge capacity)
  2. It had a faster rate of fire. Manipulating the lever on the Henry ejected the old cartridge, loaded the new cartridge and also cocked the rifle, all in one motion. The Spencer rifle, by contrast, required the user to cock the rifle separately.
Therefore, individual soldiers in the Union Army saved up to buy Henry rifles, using their own money and they purchased more rifles than the US Government did. To the Confederate soldiers who were armed with slow single shot muzzleloading rifles, a Union soldier armed with a fast firing 16-shot repeating rifle was a deadly opponent. In fact, confederate soldiers called the Henry rifle as "the damned Yankee rifle that they load on Sunday and shoot all week!"

While the Henry rifle sold well, it had some flaws that made it somewhat unsuitable as a military weapon (such as mud and dust entering the open magazine slot and causing it to not feed cartridges properly), so the New Haven Arms company worked to improve the design. Meanwhile, the shirt manufacturing business owned by Oliver Winchester and John M. Davies started doing so well that they retired from that company on January 1st, 1865 and left it to their respective sons to run, so that they could concentrate their efforts on managing the New Haven Arms company. Shortly afterwards, Oliver Winchester went on a trip to Europe, to try and market the Henry rifle to European countries. While he was travelling in Europe, Benjamin Tyler Henry was angered by what he thought was inadequate payment for developing the rifle, and attempted to acquire the rights of the New Haven Arms company (which he still owned shares in), in collaboration with the company secretary, Charles Nott. They petitioned the Connecticut state legislature to change the name of the company to the Henry Arms company. When Oliver Winchester heard about this in May 1865, he immediately sent a telegram to John M. Davies to present the Henry Arms company with all the debts that the New Haven Arms company owed him. Meanwhile, he hurried back to the US and tried to prevent the New Haven Arms company from operating under its new name. Since he could not prevent this, he decided to form his own Winchester Firearms company

The formation of this new company was not that hard, since it turned out one of New Haven Arms factories in Bridgeport was actually leased under Oliver Winchester's name and not the company. He had also paid to equip this factory personally, and not the New Haven Arms company. Therefore, he had a factory already equipped to manufacture firearms and could reduce the New Haven Arms company's production by over 50% immediately. On top of that, he owned many of the machinery used for production, therefore many of the other shareholders voted to keep him as president of the New Haven Arms company. Nevertheless, he formed Winchester and set about producing an improved version of the Henry rifle, which became the Winchester Model 1866. This used the same .44 caliber cartridge, but improved the magazine to prevent the jamming issues, by making a closed magazine that could be loaded via a hinged gate at the bottom of the receiver. The design was modified sufficiently to prevent Benjamin Henry and the Henry Arms company from suing Winchester. From this came the birth of one of American's leading firearm companies.

Meanwhile, at the beginning of this article, we had mentioned that Horace Smith had gone back to his home in Springfield, after the sale of the Volcanic Arms company to Oliver Winchester, and 8 months later, Daniel Wesson had left the company as well. Neither of them had been idle after they left the Volcanic Arms company. While Samuel Colt had a patent on revolvers, his revolver patent was due to expire in 1856. Anticipating this, Daniel Wesson began working on a new revolver design. At that time, most revolvers were percussion cap fired and the user would have to pour black powder into each of the six chambers of the cylinder, then push a bullet into each chamber, and then load the percussion caps on the rear of the cylinder, making the whole reloading process cumbersome. Daniel Wesson began working on a design that would use metallic cartridges to load the revolver, thereby speeding up the whole loading process. To do this, he needed to develop a revolver design where the cylinder was bored through and could be loaded from the breech. While he was doing this research, he realized that this concept had already been developed by a former Colt employee named Rollin White, who held the patent for the design. Immediately, Daniel Wesson went to Springfield, Massachusetts and contacted his old friend, Horace Smith. Together, they formed a new Smith & Wesson company to manufacture revolvers and approached Rollin Smith for his patent. Rather than make him a partner in their new company, they offered him a royalty of $0.25 for every revolver manufactured by them. This meant that they were free to manufacture revolvers, while the job of defending the patent from other infringers was White's responsibility. Due to this arrangement, Rollin White lost a lot of money battling court cases, while Smith & Wesson prospered.

Smith & Wesson Revolver Model 1. Click on the image to enlarge. Public domain image.

The new revolvers were an immediate success and sold very well that by 1860, Smith & Wesson had to expand into a new factory. The US Civil war only increased the demand as Smith & Wesson revolvers were purchased privately by many soldiers on both sides. Rollin White even started a separate factory to supply revolvers to Smith & Wesson, to keep up with the demand. Other manufacturers also started to manufacture similar revolvers and therefore, Rollin White sued them in court. He won many of these cases and therefore, the offending companies were forced to stamp "Manufactured for Smith & Wesson" on the revolvers that they made. Despite winning many of these cases, Rollin White did not make much money himself, as he spent most of his earnings on paying lawyers.

After the end of the Civil War, Smith & Wesson started manufacturing revolvers suitable for the American west and also started selling to the US Army, Russia, Australia etc.

So there you have it, from the Walter Hunt rocket ball patent to the birth of two US firearms giants, Winchester and Smith & Wesson.

Tuesday, April 28, 2015

The Volcanic Repeating Arms Company

In our last post, we studied about rocket ball cartridges, the Volition repeating rifle and the Jennings rifle. As we saw previously, the Volition was the first lever action rifle and it used an innovative metallic cartridge, but its inventor, Walter Hunt, could not market the rifle successfully. The patent was improved by Lewis Jennings, who invented and marketed the Jennings rifle between 1849 and 1852. While the Jennings design was also not very successful commercially, it led to the formation of a couple of legendary American firearm manufacturers, who we will study about in today's post, as we study the further developments of the Volition and Jennings rifles.

Both Jennings and Hunt were employed by Mr. George A. Arrowsmith, who could not fund the development of both rifles, so he transferred the patent rights of both inventors to Mr. Courtlandt C. Palmer for $10,000. Courtlandt Palmer was a wealthy businessman from New York City, who was a former railroad president and a leading hardware merchant, but he had no manufacturing experience in firearms himself. Therefore, he subcontracted the manufacture of 5000 Jennings rifles to the Robbins & Lawrence Firearms Company in Vermont, which was the largest non-government firearm manufacturer in the US at that time. The shop foreman of Robbins & Lawrence was a gentleman by the name of Benjamin Tyler Henry, who we will hear about again soon. In order to help work out the production problems of the Jennings rifle, Mr. Palmer hired an experienced inventor named Horace Smith, as head of development for the Jennings Rifle at Robbins & Lawrence. Horace Smith and Benjamin Tyler Henry worked together to improve the design. Some of the innovations made by Horace Smith went into a design called the Smith-Jennings rifle.

As it turns out, another inventor named George Leonard from Massachusetts, had invented an innovative pepperbox pistol in 1849 and had hired another experienced gunsmith named Daniel B. Wesson to help him work out production issues. The Leonard pepperbox pistol was not a commercial success either and George Leonard sold his company and all the patent rights to the Robbins & Lawrence company in 1850 and Daniel Wesson was hired as the superintendent of the Leonard Pistol Works, a division of Robbins & Lawrence, to manufacture the pepperbox pistols. Due to these coincidences, Horace Smith, Daniel Wesson and Benjamin Tyler Henry were all working in the same building at the Robbins & Lawrence factory in 1850.

Despite these superstars all working in the building, there were problems with both products. Even though the Walter Hunt patent claimed that that the rocket ball was self cleaning (as noted in our last post), it didn't work nearly as well in real world situations. While the Jennings rifle could fire up to twenty times a minute, Mr. Lawrence himself noted that the result of firing twenty shots from the gun was that the rocket balls leaded the barrel to such an extent that a 50 caliber bore would be reduced to a hole of 25 caliber! Apart from this, the rocket ball only held a small amount of propellant and was significantly underpowered compared to other firearms. On top of that, the Jennings rifle was heavy, expensive to manufacture and determined to be "too complicated" by the Ordnance department and several of them were converted from repeating rifles to single shot models. At this point, the Jennings rifle was also still dependent on an external primer cap being loaded by the user separately and it wasn't self-cocking yet either. The improvements made by Smith in the Smith-Jennings rifle also shared the issues of underpowered rocket ball ammunition and separate priming. By 1852, all development of Jennings and Smith-Jennings rifles had ceased.

A Jennings rifle. Click on the image to enlarge.

A Smith-Jennings rifle

The Leonard pepperbox pistol was a fairly good product, however it failed for a very different reason. This pistol used cap and ball ammunition technology, which was fairly common for that era. It was comfortable to hold and shoot, was faster to load than other pistols, didn't use a very complicated mechanism and was a breechloading firearm. In short, it was a pretty decent practical firearm. The only problem was that Samuel Colt had recently invented his revolvers a little earlier and Colt's products were lighter, faster, more powerful, more accurate and therefore, many more people bought them. Hence, by 1854, the production of the Leonard pepperbox pistol was abandoned as well.

Leonard Patent Pepperbox pistol. Click on the images to enlarge.

It is commonly accepted that Horace Smith and Daniel Wesson had conversed with each other about the failures of both designs, while working at the Robbins & Lawrence factory. In 1851, Horace Smith was sent to Europe by Courtlandt Palmer, to attend the London Great Exhibition and meet European gunsmiths to investigate their new innovations in firearms technology. There, he met the French inventor, Louis Flobert, and learned about his developments in self-contained brass cartridges and rimfire ammunition. Horace Smith and Daniel Wesson determined that the Flobert cartridge was also underpowered, but they could make an improved self-contained rimfire cartridge based on Flobert's ideas. Therefore, they began working on the new cartridge and a new pistol, shortly after Smith's return from Europe.

In 1853, they filed patent applications for a new cartridge and pistol model and the patents were granted in 1854. Horace Smith and Daniel Wesson formed a new company to manufacture these products and named their company after themselves as "Smith & Wesson". They also persuaded Courtlandt Palmer to finance their new company as well and he gave them around $10,000 to purchase tools and machinery. The manufacturing took place at Horace Smith's shop in Norwich, Connecticut. Soon after, they hired away Benjamin Tyler Henry from the Robbins & Lawrence factory, to be the shop superintendant of their new company.

The new cartridge that they invented initially had a metallic case, tapering outward near its base. Priming material was spread on the inside of the cartridge head and then a metal disc was placed on it to hold the primer in place and act as an anvil. Hitting the metal disc anywhere on the head would cause it to detonate the primer, therefore this new cartridge could act as both a rimfire and a centerfire cartridge. However, the latest machinery available of this time could not produce this cartridge economically. Therefore, they reworked the Walter Hunt rocket ball design and used a mercury fulminate primer cap in a glass cup in the bullet cavity. The glass cup rested on an iron anvil and the back was sealed  with a cork wad. Later experiments showed that this cork caused malfunctions, so it was replaced by a copper base cap, which was later changed to brass. The iron anvil was also replaced by a brass one. Unlike the Hunt rocket ball, the innovation of Smith & Wesson was to include the primer in the cartridge.

Like the earlier Volition repeating rifle and the Jennings rifle, the pistols they made to fire this new cartridge, used the ideas of the lever action principle and a tubular magazine located under the barrel. Unlike the Volition and Jennings rifles, these pistols didn't need separate priming caps, as they were already included inside the new cartridges.

Early Smith & Wesson Lever Action pistols. Public domain image.


However, this version of the Smith & Wesson company only lasted around 17 months before the funding as exhausted. The performance of the pistols wasn't all that good and they didn't sell that well initially. The ammunition suffered from misfires, poor extraction, corrosion and fouling and was still relatively underpowered as well, even though it was a more advanced version of the rocket ball ammunition.

Courtlandt Palmer began looking for ways to recover his investment and reorganized the company as the Volcanic Repeating Arms Company in 1855 and persuaded a group of investors to pool their funds in this new company. One of the investors was a wealthy shirt manufacturer named Oliver F. Winchester, who became the new Vice President of the company. Courtlandt Palmer sold all his shares in the Volcanic Repeating Arms Company and got out of the firearms business entirely. Horace Smith and Daniel Wesson were also paid $65,000 in cash and 2,800 shares of stock for their ownership of the company. Horace Smith left the company and went back to his home in Springfield, Massachusetts, while Daniel Wesson stayed on as a factory manager for another 8 months. Benjamin Tyler Henry also went back to his old job at Robbins & Lawrence.

Lever action carbine and pistols made by the Volcanic Repeating Arms Company

In 1856, Oliver Winchester moved the Volcanic Repeating Arms Company to New Haven, Connecticut, since he already had his men's clothing business there as well. By this time, both Smith and Wesson were no longer working for this company.

The rifles and pistols didn't have good sales because of the poor performance of the Volcanic cartridges and this company nearly went out of business in February 1857. However, Oliver Winchester still believed in the lever action principle and he purchased all the assets of this company from the remaining stockholders for $40,242.51 on March 15th 1857. By April 1857, he reorganized and renamed the company as the New Haven Arms company.

The interesting thing about his buyout was that the amount he bought it for was barely enough to pay off all the creditors that Volcanic owed money to, so the other stockholders got practically nothing for their shares. In addition, the debt courts awarded all the assets of the Volcanic Repeating Arms Company to Oliver Winchester, which included the patents of Walter Hunt, Lewis Jennings, Horace Smith and Daniel Wesson. The way he organized the new firearms company was by selling all the assets of Volcanic to the New Haven Arms company, with the exception of the patents, which he still kept under his control. Therefore, he only sold to New Haven, the rights to produce the firearms and ammunition described in his patents, but kept the rights for the patents with himself. In effect, the New Haven Arms Company would be manufacturing the Volcanic Repeating Arms products, but paying him for the rights to do it!

Shortly after this is when Oliver Winchester finally got a lucky break. The Robbins & Lawrence Arms company was facing financial difficulties in their business and Benjamin Tyler Henry was looking for a new job. Oliver Winchester jumped at the chance and re-hired him immediately. He put Henry in full control of developing a new cartridge for the New Haven Arms company. Henry had seen all the cartridge experiments being done by Smith and Wesson and had excellent knowledge of all the production issues of the earlier rifles. He began to tinker with the .22 caliber rimfire cartridge that Daniel Wesson had originally produced for a pistol and made it larger and more appropriate to be used by a rifle. We will study what happened as a result of his experiments in the next post.

Meanwhile, Daniel Wesson and Horace Smith had also not been idle and they had plans of their own as well.

In the next post, we will study the birth of a couple of American giants, the Winchester Arms company and the new Smith & Wesson.

Saturday, April 25, 2015

Rocket Balls and the Volition Repeating Rifle

We have looked into several developments for metallic cartridges in the last few posts. In today's post, we will look at a very early development in metallic cartridge history. The cartridge we will study today is Walter Hunt's Rocket Ball cartridge and the rifle that was built to fire it, the Volition Repeating Rifle.

A long time ago, we had studied about expanding bullets and the Minie ball. These were bullets produced with a hollow conical cup fitted at the base of each bullet. When the rifle was fired, the cup would move up and expand the base of the bullet, so that it would engage the rifling grooves and also make a tighter gas seal, so that the gases would mostly use their energy to push the bullet out of the barrel, instead of escaping out around the sides of the bullet. However, expanding bullets like the Minie ball were used with muzzle loading rifles. This meant that a user would pour in gunpowder first, then drop in the bullet, then ram everything down the barrel, then cock the weapon and add a percussion cap, all this before the user could pull the trigger. This meant loading took a while.

In 1848, a gentleman named Walter Hunt from New York, invented a new type of metallic cartridge that he called the Rocket Ball. A copy of his patent claim (US 5701) is available online,

Patent for the Rocket Ball Cartridge
Click on the image to enlarge. Public domain image.

Like the Minie ball, this bullet also has a deep hollow in the base. This hollow serves the same purpose as the Minie ball, (i.e.) it serves to expand the base of the bullet when it is fired and makes a tighter gas seal. However, the design also has a second use for that hollow space -- Walter Hunt also filled the hollow with gunpowder and sealed the base with a cap with a small round hole in its base for ignition. In the above diagram, A is the cap in figure 1, shown attached to the bullet. In figure 3, the cap A is shown disassembled from the bullet. In figures 3 and 4, you can also see the small hole in the middle of the cap, represented by F. The gunpowder was packed into the cavity D. The line GG represents a thin waterproof seal, through which the priming flame could penetrate to ignite the gunpowder in D. The seal prevented the powder from getting spoiled by moisture, or falling out from the back of the cartridge.

Upon firing the gunpowder, the base of the bullet would expand and separate from the cap, which would also expand and seal the breech from the back. The bullet would be pushed out of the barrel, leaving the cap behind resting on the breech plug. Upon loading the next cartridge from the breech, the cap would be pushed forward and end up in front of the next bullet. Upon firing the next cartridge, the old cap would leave the barrel ahead of the next bullet fired, thereby wiping the barrel on the way out and cleaning some of the powder fouling.


Therefore, this was not only one of the early metallic cartridges invented, it was also an early type of caseless ammunition! Unlike the Minie ball, loading this new ammunition was much faster because bullet and gunpowder were all contained in a single package and the user only needed to add the percussion cap.

To fire this new type of ammunition, Walter Hunt also developed a firearm called the Volition Rifle. It was one of the first lever action weapons invented. The rifle was somewhat complicated to build and contained a number of small delicate parts. Therefore, it was not a commercial success and only a few examples were built.

However, the idea of a lever action repeating rifle firing a self-contained cartridge was picked up by other people, notably a gentleman named Mr. Lewis Jennings, who invented a better lever action rifle called the Jennings rifle, which was manufactured between 1849 and 1852, Like the Volition rifle, this was also fired by an external percussion cap. While Lewis Jennings took care of marketing the rifle, the manufacturing was subcontracted to a company called Robbins & Lawrence Arms Company in Vermont.


A Jennings Rifle. Click on the image to enlarge.



It is interesting to note that the foreman of the Robbins & Lawrence Company factory during this time, was a gentleman named Benjamin Tyler Henry. He worked with two other employees of the factory, Horace Smith and Daniel Wesson, to improve the rifle design. We will read more about these three employees and their further inventions in the next article.

The Jennings rifle was only manufactured for three years before production stopped in 1852, resulting in heavy losses for the company's investors. However, the Volition and the Jennings rifles showed the concept of a rapid-firing repeating rifle was possible. We will study further developments in the next article.