.38/.45 Clerke

Wildcat semi-automatic pistol cartridge .38/.45 Clerke / 9.1x22mm 38-45 clerke metallic.jpg .38-45 Clerke cartridge with metallic effect United States Pistol Bo Clerke 1963 Armory Gunshop .45 ACP Rimless, bottleneck .357 .470 .471 .050 .880 1.22 large pistol 130 FMJ 1245 445 The .38/.45 Clerke (pronounced "clark"), aka .38/.45 Auto Pistol .45/.38 Auto Pistol or 9.1x22mm, is a wildcat semi-automatic pistol cartridge developed by Bo Clerke and introduced in Guns & Ammo in 1963. none Guns and Ammo Magazine October 1963 History and design It is essentially a .45 ACP case, necked down to .357, resulting in a cartridge similar in form to the earlier 7.65×21mm Parabellum and 7.63×25mm Mauser cartridges. It was created to be a low recoil target cartridge that would function reliably with multiple bullet types, FMJ to cast lead wadcutters without the feeding problems that straight walled pistol rounds sometimes exhibit.Campbell R. K. Shooter's guide to the 1911 2011 Krause Publications 978-1-4402-1894-1 Iola, WI 122 777016421 The cartridge can be used in standard .45 ACP magazines.Sweeney Patrick Gun digest big fat book of the .45 ACP 2009 Krause Publications 978-1-4402-2632-8 Iola, WI 329–332 774392873 The cartridge is sometimes confused with the 38/45 Hard Head invented by Dean Grennell around 1987. 38/45 Hard Head is based upon shortened and necked down .45 Winchester Magnum or .451 Detonics cases, operates at a much higher pressure and its load data should never be used for the 38/45 Clerke. Ammunition and reloading .45 ACP cases can be resized to handload .38/.45 Auto cartridges Barnes Frank C. Cartridges of the world : a complete and illustrated reference for over 1500 cartridges 2006 Gun Digest Books Stan Skinner 978-0-89689-297-2 11th Iola, Wis. 140–143 70173636 using form and sizer dies still available from the RCBS Corporation, p/n 56468. Nearly any M1911 pistol and pistols of the same pattern can be converted to the .38/.45 cartridge with a replacement barrel, from a 38 Super barrel reamed out to .38/.45 dimensions. During the round's initial popularity, drop-in barrels were available from makers like Bar-Sto. Related rounds .45 ACP .38 Super .400 Cor-Bon .357 SIG 7.63×25mm Mauser .38 Casull See also List of handgun cartridges References 2 External links .38/.45 Clerke on Practical Machinist Category:Paramilitary cartridges Category:Pistol and rifle cartridges Category:Wildcat cartridges