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The maximum SAAMI pressure level for the .221 Fireball is 52,000 C.U.P. as compared to 46,000 C.U.P. for the .222 Remington. The purpose of the increased pressure was to allow it to perform more effectively in the shorter barrel of the XP-100. The .221 Fireball produces the highest velocity of any commercial pistol cartridge. [4]
The .221 Fireball case shares the same case head dimensions (0.375"/ 9.53mm) as the commercial .223 Remington and military 5.56×45mm cartridges. The 7mm Remington Bench Rest case shares the same case head dimensions (0.470"/ 11.94mm) as the commercial .308 Winchester (as well as other cartridges based on that case; .243 Winchester , .260 ...
The .223 Remington (designated 223 Remington by SAAMI [4] and 223 Rem. by the C.I.P. [5], pronounced "two-twenty three") is a rimless, bottlenecked, centerfire intermediate cartridge. It was developed in 1957 by Remington Arms and Fairchild Industries for the U.S. Continental Army Command of the United States Army as part of a project to create ...
The XP-100 was one of the first handguns designed for long-range shooting and introduced the .221 Fireball and 6×45mm. The XP-100 was noted for its accuracy and is still viewed as competitive today in the sport of handgun varminting , which it helped create, [ 1 ] as well as in metallic silhouette shooting .
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.
Developed jointly by Remington and Smith & Wesson, it was to be used in the Model 53 revolver, which first appeared late in 1961. [3] While it traced its origins to potent wildcats such as the .224 Harvey Kay-Chuk, [4] which ultimately derive from the .22 Hornet, [4] it was a bottlenecked cartridge based upon the .357 Magnum case necked down to a .22 caliber bullet, with an unusually long ...
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Size comparison between .222 (left), .223 (center) and .222 Magnum (right) The .222 Remington was eventually eclipsed in benchrest competition by the 6mm PPC . When the US military was looking for a new smallbore rifle cartridge, Remington started with the .222 Remington, and stretched it to increase powder capacity by about 20% in 1958 to make ...