.45 Super

Pistol cartridge designed by Dean Grennell July 2020 .45 Super United States Pistol Dean Grennell 1988 1988–present .451 Detonics Magnum Rimless, straight .451 .473 .476 .480 .049 .898 1.275 25 1 in 16 in 0 Large pistol 28000 185 JHP 1300 694 200 JHP 1200 639 230 FMJ 1100 618 230 JHP 1100 618 255 Hard Cast FN 1075 654 5 in MidwayUSA 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 ft/s improvement in muzzle velocity.".45 Super" Everything Development Company website. Accessed March 11, 2008. The cartridge was co-developed by Tom Fergerson and Ace Hindman.Cengage Learning History and design In 1994 Triton Cartridge, an ammunition company based in upstate NY, released a cartridge called the .45 Super. Essentially, the .45 Super is based on a .451 DetonicsShort History of the .451 Detonics Magnum 2012-08-05 http://www.z3bigdaddy.com/site8/page44.html Z3BigDaddy 2015-06-24 2015-06-23 https://web.archive.org/web/20150623233828/http://www.z3bigdaddy.com/site8/page44.html dead case trimmed to .45 ACP length. Pioneered by writers Dean Grennell and the late Tom Ferguson, the .45 Super raised the performance level for .45 ACP-chambered guns beyond that of the .45 ACP +P. Starline Brass, an American arms manufacturer based in Sedalia, Missouri, eventually began marketing brass cases for the chambering. The former Ace Custom .45's Inc. from Cleveland, Texas, trademarked the .45 Super in 1994 and has since marketed and assembled pistols chambered in .45 Super, as well as .45 ACP conversion kits. They ceased operations in the early 2010s. Trademark and royalty problems caused that the major ammunition and most gun manufacturers opted to disregard the .45 Super, effectively condemning it to a (semi-)wildcat cartridge status. The deliberate choice of identical external dimensions with the significantly lower pressure .45 ACP cartridge can also cause malfunctions, accidents or catastrophic failures and potential liability problems. Ballistics A number of bullet weight and velocity combinations are offered in .45 Super, including a 185 gr g on bullet propelled at 1300 ft/s on, a 200 gr g on at 1200 ft/s on and a 230 gr g on at 1100 ft/s on."Versatility and Power – The '45Super' Concept" https://web.archive.org/web/20080217023338/http://www.acecustom45s.com/45super.htm February 17, 2008 Ace Custom .45s website Accessed March 11, 2008."Starline Product Information & Descriptions" https://web.archive.org/web/20080424021329/http://www.starlinebrass.com/descriptions.html April 24, 2008 Starline Brass website. Accessed March 11, 2008. as well as other weights and velocities provided by Super Express cartridges and Buffalo Bore, such as 255 gr on at 1050 ft/s on. Current status .45 Super ammunition and firearms optimized specifically for this round are not mass-produced. As dimensionally-similar chamberings' operating pressures increase bolt thrust (close to .40 S&W and 10mm Auto bolt thrust levels), only nonvintage sturdy .45 ACP chambered handguns are capable of firing .45 Super ammunition with or without a conversion to safely deal with the accompanying additional mechanical stress and wear. Conversion kits for .45 ACP chambered guns contain aftermarket guide rod and spring assemblies and sometimes magazine springs to alter the slide velocity of semi-automatic pistols to obtain a correctly timed cycling sequence to promote functional reliably under significantly increased bolt thrust and can contain aftermarket fully supported barrels to avoid case bulging or case head rupture.The .45 Super Page See also Ballistics By The Inch .45 Super/.450 SMC results List of handgun cartridges .44 Magnum .45 GAP .475 Wildey Magnum 11 mm caliber .40 Super Table of handgun and rifle cartridges References 45 Super Category:Wildcat cartridges Category:Weapons and ammunition introduced in 1988