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Old 03-12-2009, 07:48 PM   #1
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Default Major Differences

Can anyone tell me the difference between a .45 auto and a .45 ACP?



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Old 03-12-2009, 07:50 PM   #2
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Same thing. ACP stands for Auto Colt Pistol. You can find the ACP title behind .45, .32, .380, .38 and .25.

http://en.wikipedia.org/wiki/ACP_(ammunition)



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Old 03-12-2009, 10:33 PM   #3
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Default Welcome In! Slinger.

Quote:
Originally Posted by slinger View Post
Can anyone tell me the difference between a .45 auto and a .45 ACP?
Matt is correct-to a point. .45 auto+.45 ACP are the same-BUT- There is, in semi-auto: .45 Auto Rim .45Gap .45 Magnum. Revolver ctg-45 Colt, is also popular to the Cowboy Action group. In general when someone says I have a .45Auto, they mean .45ACP
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Old 03-12-2009, 10:52 PM   #4
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Quote:
Originally Posted by BILLYBOB44 View Post
Matt is correct-to a point. .45 auto+.45 ACP are the same-BUT- There is, in semi-auto: .45 Auto Rim .45Gap .45 Magnum. Revolver ctg-45 Colt, is also popular to the Cowboy Action group. In general when someone says I have a .45Auto, they mean .45ACP
Well then, let's not forget .45 Long Colt, .45 Super, .45 Remington-Thompson, .45 Winchester Magnum, or .45 Peters.

.45 Auto is a synonym for .45 Auto Colt Pistol. Always has been, always will be. C.I.P., and because of it, the rest of the world knows the .45 ACP as .45 Auto. C.I.P. is the authority in ammo worldwide. SAAMI is only king in the US.

CIP lists the maximum pressure allowable by a .45 Auto at 18,885 PSI, whereas, SAAMI allows for 21 kPSI. Other than that, the 2 are identical.
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Old 03-19-2009, 03:03 AM   #5
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what the heck, no love for the .45 Schofield as long as we're rattling of cartridge names?

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Old 03-19-2009, 04:24 AM   #6
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.................45 auto....45 acp -----------AND
38,......No !.......WOULD YOU BELIEVE------FOURTY-FIVE ?



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