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The "Foster slug", invented by Karl M. Foster in 1931, and patented in 1947 (U.S. patent 2,414,863), is a type of shotgun slug designed to be fired through a smoothbore shotgun barrel, even though it commonly labeled as a "rifled" slug. A rifled slug is for smooth bores and a sabot slug is for rifled barrels. [9]
The slug is passed from breech to muzzle to remove obstructions. Many passes are made, and as the bore becomes more uniform, finer grades of abrasive compound are used. The final result is a barrel that is mirror-smooth, and with a consistent or slightly tapering bore.
Military use of combat shotguns through the 20th century has created a need for ammunition maximizing the combat effectiveness of such weapons within the limitations of international law. 12-gauge has been widely accepted as an appropriate bore diameter to provide an effective number of projectiles within an acceptable recoil. Early 12-gauge ...
A cartridge, [1] [2] also known as a round, is a type of pre-assembled firearm ammunition packaging a projectile (bullet, shot, or slug), a propellant substance (smokeless powder, black powder substitute, or black powder) and an ignition device within a metallic, paper, or plastic case that is precisely made to fit within the barrel chamber of ...
The saboted slug had half the frontal area of the old slugs, which translated to less drag, and greater penetration. Lighter, faster slugs were also possible, allowing for a flatter trajectory and longer range. With the wide selection of barrels, shotshells and slugs, the modern shotgun is a tremendously versatile tool.
This method is still used mainly for hunting small game, and, occasionally, for hunting deer with buckshot, but modern shotguns can also be used for bigger game (deer, bear, etc.) when loaded with slugs. Hunting shotguns are shoulder-fired weapons, and are generally smoothbores, but guns designed to fire slugs may have rifled barrels.
A view of the break-action of a side-by-side, and an over-and-under double-barrelled shotgun, both shown with the action open. For most of the history of the shotgun, the breechloading break-action shotgun was the most common type, and double-barreled variants are by far the most commonly seen in modern days.
An airgun slug is a new [when?} type of pellet recently developed for pre-charged pneumatic airguns. Unlike the conventional diabolo -shaped pellet, which is aerodynamically poor and relies heavily on drag -stabilisation to maintain accuracy, the slug pellet is cylindro-conoidally shaped like a Minié ball and relies predominantly on spin ...