Common
.45 Super
Pistol cartridge designed by Dean Grennell
.45 Super
The .45 Super / 11.5x22mm is a smokeless center fire metallic cartridge developed in 1988 by Dean Grennell. Its external dimensions are identical to the .45 ACP/.45 ACP +P round, but it has a thicker internal case-wall, web-area and overall hardness of the cartridge case and is loaded to significantly higher pressures, which offers an average 300 feet per second (91 m/s) improvement in muzzle velocity. The cartridge was co-developed by Tom Fergerson and Ace Hindman.
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