Best left to a trained gunsmith.
'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 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.
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.
Call Colt with the sn
Actually, the cartridges are .45 ACP (automatic Colt Pistol) and .45 Colt (the cowboy era revolver cartridge. There is not really a Colt 45 Long. Can a revolver shoot both? Some can- they are chambered for the Colt .45 -but to shoot .45 ACP they need a "half moon clip"- a strip of metal that holds 3 of the shorter .45 ACP cartridges. 2 of those fill a 6 shot revolver. The PISTOL (not revolver) that shoots the .45 ACP cannot shoot the .45 Colt- no groove for the extractor to pull a fired cartridge out of the chamber, and it is too long.
Caliber .45 Automatic Colt Pistol.
Automatic Colt Handgun. It refers to a gun, or also to a caliber. 45 ACP is called ACP because it was originally designed by Colt.
Colt .45 ACP