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The least popular sizes are the 10 gauge and the 16 gauge; while far less common than the other four gauges, they are still commercially available. [citation needed] [9] Shotguns and shells exceeding 10 gauge, such as the 8 gauge, 6 gauge, 4 gauge, and 2 gauge are historically important in the United Kingdom and elsewhere in mainland Europe ...
The need for a micrometer or other accurate linear measurement tool, for sizing round shot diameter, was eliminated in both instances. Note that the 410 gauge shotgun is somewhat misleading in name, as the barrel is .410 inches in diameter, and it draws its name from this rather than the weight of shot.
The 20-gauge shotgun, also known as 20 bore, is a type of smoothbore shotgun. 20-gauge shotguns have a bore diameter of .615 in (15.6 mm), while the 12-gauge has a bore diameter of .729 in (18.5 mm). [ 2 ] 12-gauge and 20-gauge shotguns are the most popular gauges in the United States .
Shotgun conversion sleeves may be called subgauge inserts, subgauge tubes, or gauge reducers. Sleeves intended for rifle or handgun cartridges may have rifled barrels. Additional variations may allow centerfire weapons to fire rimfire ammunition and/or retain autoloading function with the smaller cartridge.
Comparison of .577 Black Powder Express, .303 British & 8 bore bullets The most common 8 bore cartridges used paper cases, much like shotgun shells, and true .835 in (21.2 mm) caliber projectiles. A larger version utilising a thin brass case was also available, although it fired .875 in (22.2 mm) projectiles, in reality making it a 7 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 ...
1012 – 12-gauge chambered for 2 + 3 ⁄ 4 and 3 in (7.0 and 7.6 cm) shotshells; barrel lengths 24 to 30 in (61 to 76 cm) in 2-inch increments; 1012 Super – same as 1012, except chambered for 3 + 1 ⁄ 2 in (8.9 cm) magnum shotshells; 1020 – 20-gauge with same chambering and barrel lengths as the 1012
Download as PDF; Printable version; ... a shotgun chambered in 12-gauge. A shotgun is a long gun that has a ... an industrial tool powered by cartridges containing ...