Is there a difference between 45 acp and 45 auto ammo?

Question

I have a 45 ACP and was wondering if you can shoot bullets stamped 45 AUTO or if they have to be stamped 45 ACP

Answer 1

No, it's the same thing. ACP stands for Automatic Colt Pistol.

Answer 2

.45 AUTO will be fine to use,as that is what you find everywhere. Military surplus has no caliber on the headstamp, and that also can be used.
I have fired 1000s of .45 AUTO rounds and have never seen one headstamped .45 ACP. If any one has seen one, let me know who made it.

Answer 3

YES, what you have is the rimless .45 ACP, and you also have the .45 auto Rimmed, designed for the S&W revolvers , so they could be ejected together without punching them out one at a time, or using half moon clips..

Answer 4

ACP stands for automatic colt pistol.There is 45 ACP which is for pistols and submachine guns,and 45 long colt which is for revolvers.I know the long colt doesn't come in to play here,I just thought would mention

Answer 5

NO. There is no difference,they are the EXACT same cartridge......

No offense Harry, but 45 long Colt has nothing to do with this question........

YES.....You can shoot either in your 45 automatic or 45ACP (Same) in your handgun

Answer 6

Yep same crap, the long colt has nothing to do with these 2 rounds and both are safe t fire as long as they are soft lead core and not steal core (not common in pistol ammo anyway)

Answer 7

no difference, 6 in one-half a dozen in the other

Answer 8

None whatsoever.*

Answer 9

Same.

H