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The degree of deformation is most acute with fuller chokes, which were among the most widely used in stock shotguns up until the 1980s and 1990s. Early shotgun slugs were "rifled" with deformable fins cast into the outside of the soft lead slug, which allowed the slug to swage down to fit the choke. With an open choke, the reduction in diameter ...
A choke is designed to alter or shape the distribution of the shot as it leaves the firearm. For shooting most game birds and clay pigeons, a desirable pattern is one that is as large as possible while being dense enough to ensure multiple hits on the target, at a particular range. The choke should be tailored to the range and size of the targets.
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]
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.
Having two barrels lets the shooter use a more open choke for near targets, and a tighter choke for distant targets, [6] providing the optimal shot pattern for each distance. The disadvantage lies in the fact that the barrels of a double-barreled shotgun, whether over-and-under or side-by-side, are not parallel, but slightly angled, [ citation ...
A ported, rifled, .44 Magnum barrel was made available for use with shotshell cartridges in a removable-choke .44 Magnum barrel, with the choke being used to unspin the shot from the barrel rifling, or, by removing the choke, for use with standard .44 Magnum cartridges.
The barrel is rifled for the .45 Colt but has a special choke and vent rib to make it function as a shotgun. Due to the rifled barrel, the assembled firearm is considered a rifle or pistol (depending on barrel length) and thus is not subject to the United States' National Firearms Act's 18-inch (460 mm) minimum barrel length.
Different options on shotgun chokes and ammunition (from different pellets sizes and up to slugs) makes for interesting choke and ammunition choices based on the stage at hand. Like IPSC Shotgun , the minimum caliber for shotguns are 20 gauge in the Open, Limited and Tactical divisions, only the Heavy Metal division is unique in that it ...