You can fire a .45 ACP cartridge through a .45 ACP pistol - and only a .45 ACP pistol. The various .45 cartridges (.45 ACP, .45 Long Colt, .45 GAP, etc.) are not interchangeable with each other.
'ACP' means Automatic Colt Pistol. A 1911, for example, would chamber a .45 ACP cartridge.
The .45 ACP--which stands for AUTOMATIC COLT PISTOL is used in semiautomatic pistols. The .45 Colt is used in revolvers.
ACP stands for Automatic Colt Pistol. It is used to differentiate two bullets of the same caliber when one is for a pistol and one is for a revolver. For instance, .45 Colt is for a revolver, and .45 ACP is for a pistol. Other than the .45 inch measurement, the two have nothing in common and are not interchangeable; the .45 ACP cannot be used in a revolver chambered for .45 Colt and vice versa. The cartridge length and capacity are just two of the factors that make each different from the other.
NO, NO, NO, NO, !!!!!!!!!!!!!!!!!!!!!!!!! THEY ARE NOT INTERCHANGEABLE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
ACP stand for Automatic Colt Pistol
There is no 45 apc, but, there is a 45 acp. The 45 Colt is a longer cartridge. There is no 45 apc, but, there is a 45 acp. The 45 Colt is a longer cartridge.
It could be any pistol chambered for one of the several handgun calibers in the .45 family. The most famous .45 handguns are actually chambered for different rounds. The Colt model 1873 "Peacemaker" was offered in .45 Colt or "Long Colt" caliber, among other calibers. And the famous Colt model 1911 was sold in a caliber called .45 ACP (automatic Colt pistol). The .45 ACP is not interchangeable with the .45 Long Colt, but they both fire big heavy bullets at similar velocities.
ACP means Automatic Colt Pistol. .45 ACP and .45 Auto are the same cartridge. .45 Colt and .45 Auto Rim are a revolver cartridge. .45 GAP (Glock Auto Pistol) is a shorter round than the ACP, and does not interchange with it.
Automatic Colt Pistol. Colt invented the .45 Auto and thus had the right to name it.
.45 ACP means Automatic Colt Pistol. It IS .45 Auto.
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