.45 auto and .45ACP are the same round.
There is no difference. ACP stands for Automatic Colt Pistol.
No. 45 ACP is approximately 11.5 millimeters, so 10mm is slightly smaller in diameter.
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To indicate the caliber and manufacturer, or specific type of cartridge. For example: .22LR means 22 long rifle, which is different that a .22 short. .40 S&W means .40 Smith and Wesson, etc. which is different than a 10mm, even though a 10mm is .40 inches in diameter. .45 ACP stands for .45 Automatic Colt Pistol, which is different than .45 GAP, which stands for .45 Glock Auto Pistol.
Nothing, two names for the same round.
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.
Nothing, two names for the same round.
.45 ACP means Automatic Colt Pistol. It IS .45 Auto.
No. The 45 ACP (which means 45 Auto) cannot use the .45 GAP or the .45 Magnum.
.45 auto and .45ACP are the same round.
Both. .45 Auto and .45 ACP are the same round.
45 ACP can be used in both auto and revolver. The revolver must have a 45 ACP cylinder.
Yes
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 and auto are used to say the same thing. Automatic Colt Pistol.
Yes- IF IT IS THE CORECT CARTRIDGE. .45 ACP (Automatic Colt Pistol) may also be known as .45 Auto. It is NOT the same cartridge as .45 GAP (Glock Auto Pistol) or .45 Colt (revolver cartridge).