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Introduced for the Remington Navy single-shot, rolling block pistol in 1865, the low-velocity round loaded a 290 gr (19 g; 0.66 oz) bullet over 23 gr (1.5 g; 0.053 oz) of black powder. [1] The rimfire version was replaced in 1866 by a centerfire equivalent. A Boxer-primed version remained commercially available until World War I. [1]
The 6mm Creedmoor is a necked-down version of the 6.5mm Creedmoor using 6 mm (.243 inch) bullets, lighter than 6.5 mm bullets with similarly reduced recoil. [30] John Snow at Outdoor Life built a 6mm Creedmoor rifle in 2009 for a magazine article of the wildcat cartridge that appeared in 2010, but the first documented conception of the 6mm ...
The .20 Tactical / 5.2x45mm is a wildcat centerfire rifle cartridge, based on the .223 Remington case, necked down to fire a 5.2 millimetres (0.204 in) caliber bullet. The .20 Tactical was designed by Todd Kindler and predates the .204 Ruger factory round. The case has approximately 0.2 grams (3 gr) less powder capacity than the popular .204 Ruger.
The ammunition was bulk-packed in standard 20-round cartons without stripper clips to maximize the amounts delivered and the packaging was marked in the Chinese language. In 1944 there was a contract to make 30-million modified Springfield-type Mauser-compatible stripper clips which were bulk-packed in ammo cans. Due to the long transport times ...
A center-fire (or centerfire) is a type of metallic cartridge used in firearms, where the primer is located at the center of the base of its casing (i.e. "case head"). Unlike rimfire cartridges , the centerfire primer is typically a separate component seated into a recessed cavity (known as the primer pocket ) in the case head and is ...
The specification included a Remington-designed bullet and the use of IMR4475 powder, which resulted in a muzzle velocity of 3,250 ft/s and a chamber pressure of 52,000 psi. [ 8 ] In the spring of 1962, Remington submitted the specifications of the .223 Remington to the Sporting Arms and Ammunition Manufacturers' Institute (SAAMI).
Only small-caliber rimfire cartridges and centerfire cartridges have survived into the modern day. Military and commercial producers continue to pursue the goal of caseless ammunition. Some artillery ammunition uses the same cartridge concept as found in small arms. In other cases, the artillery shell is separate from the propellant charge.
A smaller-diameter portion of the bullet, the "heel", was crimped inside the case mouth, and the lubricant was outside the case, and exposed. [a] In contrast, the .38 Long Colt uses a bullet which on the outside of the cartridge case is only .357–.358 in (9.07–9.09 mm), the bearing surface and lubricant being entirely contained within the case.