Winchester Model 1911
Encyclopedia
The Winchester Model 1911 SL Shotgun was a self-loading, recoil-operated shotgun
Shotgun
A shotgun is a firearm that is usually designed to be fired from the shoulder, which uses the energy of a fixed shell to fire a number of small spherical pellets called shot, or a solid projectile called a slug...

 produced by the Winchester Repeating Arms Company
Winchester Repeating Arms Company
The Winchester Repeating Arms Company was a prominent American maker of repeating firearms, located in New Haven, Connecticut. The Winchester brand is today used under license by two subsidiaries of the Herstal Group, Fabrique Nationale of Belgium and the Browning Arms Company of Morgan, Utah.-...

 from 1911 to 1925. It was Winchester's first autoloading shotgun, but design flaws kept it from providing competition for the autoloading shotguns
Browning Auto-5
The Browning Automatic 5, most often Auto-5 or simply A-5, is a recoil-operated semi-automatic shotgun designed by John Browning. It was the first successful semi-automatic shotgun designed and remained in production until 1998...

 made by Remington Arms
Remington Arms
Remington Arms Company, Inc. was founded in 1816 by Eliphalet Remington in Ilion, New York, as E. Remington and Sons. It is the oldest company in the United States which still makes its original product, and is the oldest continuously operating manufacturer in North America. It is the only U.S....

 and Browning Arms Company
Browning Arms Company
Browning Arms Company is a maker of firearms, bows and fishing gear. Founded in Utah in 1927, it offers a wide variety of firearms, including shotguns, rifles, pistols, and rimfire firearms and sport bows, as well as fishing rods and reels....

.

Description and development

The Model 1911 SL (for "Self-Loading") shotgun was developed in 1911 by Thomas Crosley Johnson for the Winchester Repeating Arms Corporation. At the time, Winchester lacked an autoloading shotgun in its product offering, since the company had not accepted John Browning
John Browning
John Moses Browning , born in Ogden, Utah, was an American firearms designer who developed many varieties of military and civilian firearms, cartridges, and gun mechanisms, many of which are still in use around the world...

's conditions (he wanted to be paid on a royalty basis, without giving up his rights) for taking his 1898 autoloading design in production. The weapon rejected by Winchester was to become the Browning Auto-5
Browning Auto-5
The Browning Automatic 5, most often Auto-5 or simply A-5, is a recoil-operated semi-automatic shotgun designed by John Browning. It was the first successful semi-automatic shotgun designed and remained in production until 1998...

 shotgun (also license-built as the Remington Model 11), and set the standard for autoloading shotgun designs until after World War II
World War II
World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

.

Due to patent restrictions on the 1898 design, Winchester was unable to copy the Browning design they had rejected earlier, the only autoloading shotgun design at the time, so Winchester had to adapt the design for their own production without infringing on Browning's patents; T.C. Johnson, reportedly, joked that "it took him nearly ten years to design an automatic shotgun (the Winchester 1911) which would not be an infringement on the Browning gun." One of Browning's patents was for the charging handle on the bolt of the 1905 shotgun; Winchester worked around this restriction by using the barrel as the mechanism to charge the weapon. In order to use the 1911 SL, a user would place the gun on safe, point the firearm in a safe direction, load the tubular magazine, and then pull back on the barrel by the checkered section. After disengaging the safety, the weapon was ready to fire.

The stock can be laminated with 3 separate lengthwise pieces glued together.

Design and safety flaws

The novel method of charging the 1911 could be potentially lethal if done incorrectly. Shotgun cartridges of the time were often made of paper, which could make the cartridge body vulnerable to expansion when exposed to moisture in large quantities. If this happened in the 1911, the barrel would have to be cycled in order to open the chamber so that the swelled shotgun shell could be removed. Some users mistakenly cycled the barrel by placing the butt of the weapon against the ground and forcing the barrel down. In this position, the muzzle of the weapon would be pointing towards the face of the user, and the swelled shell could fire, injuring or killing the user. This situation could be avoided with adherence to safety procedures common to handling firearms, in particular, the practice of keeping the weapon pointed in a safe direction at all times.

The potential for slam fire when clearing jams was not the only flaw in the 1911's design. The system of buffer rings used to reduce the recoil (two fiber washers) when the weapon was fired often failed. The breakdown of these rings greatly increased the recoil when a round was fired. The gun's "hammering recoil" caused many a stock to split.

The sales of the "mechanically ill-fated" weapon lagged significantly behind those of Remington's and Browning's autoloaders, and Winchester ceased its production in 1925, after producing almost 83,000 of them. As recently as 2005, four people accidentally shot themselves with the 1911 while loading or clearing the weapon.
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