Also known as: 45 long colt, .45 Long-Colt, .45 Colt +P, 45 (Long) Colt, .45 Long Colt, 45 Colt, 45 Colt +P, .45 Colt+P, 45lc/410, 45 lc
The .45 Colt is a handgun cartridge that was first introduced in 1872 as a black powder round for the Colt Single Action Army Revolver. It is also offered in magnum level for handgun hunting purposes in modern times. The US Army adopted the .45 Colt in 1873 and it was the officially issued cartridge of military personnel for 19 years.