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Therefore with a 12-gauge, it would take 12 balls of lead of the same size as the 12 gauge shotgun's inner bore diameter to weigh 1 pound (453.6 g). [5] The term is related to the measurement of cannons , which were also measured by the weight of their iron round shot ; an eight-pounder would fire an 8-pound (3.6 kg) ball.
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 .
The 174th Tactical Fighter Wing was transitioned off of the A-10A to the F-16A/B Block 10, and during Desert Storm their aircraft were equipped with the GPU-5/A Pave Claw pod housing the 30mm GAU-13/A, which was a four-barrel variant of the seven-barrel GAU-8 Avenger used by the A-10.
Common rifle cartridges, from the largest .50 BMG to the smallest .22 Long Rifle with a $1 United States dollar bill in the background as a reference point.. This is a table of selected pistol/submachine gun and rifle/machine gun cartridges by common name.
For example, factory and aftermarket receivers using the Remington 700 footprint are produced with various types of action threads, all with a 26.99 mm (1 + 1 ⁄ 16 in) diameter, but with a pitch of either a 1.588 mm (16 TPI, Remington standard), 1.411 mm (18 TPI) or 1.270 mm (20 TPI, Savage standard).
Ithaca Gun Company: 12 gauge 16 gauge 20 gauge 28 gauge United States: 1933 Ithaca Mag-10: Ithaca Gun Company: 10 gauge United States: 1975 KAC Masterkey: Knight's Armament Company: 12 gauge United States: 1980s Kel-Tec KSG: Kel-Tec CNC Industries Inc. 12 gauge United States: 2011 KS-23: TsNIITochMash: 23x75mmR Soviet Union: 1971 KUGS HD410 ...
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Shotguns are classed according to gauge, a related expression. The gauge of a shotgun refers to how many lead spheres, each with a diameter equal to that of the bore, that amounts to one pound (454 g (1.0 lb)) in weight. In the case of a 12-gauge (18.5 mm) shotgun, it would take 12 spheres the size of the shotgun's bore to equal a pound. [12]