What's the difference between 380 ACP and 380 Auto...

Strat72 · Jan 20, 2015

I'm sure this has been discussed already.

cyphertext · Jan 20, 2015

Nothing... .380 Automatic Colt Pistol

OldK22 · Jan 20, 2015

also the same as 9mm Kurtz

legelegel · Jan 20, 2015

ACP is an acronym for Automatic Colt Pistol. .380 is just a shorten name for .380 ACP, which is also know as 9mm short, 9mm Kurtz, 9mm Browning and 9x17.

They all are the same.

gregintenn · Jan 20, 2015

Other names for .380 ACP include .380 Auto, 9mm Browning, 9mm Corto, 9mm Kurz, 9mm Short, 9×17mm and 9 mm Browning Court (which is the C.I.P. designation). It is not to be confused with .38 ACP, 9mm Ultra, 9mm Makarov or 9mm Parabellum.

Now are you confused?

Walter Rego · Jan 20, 2015

I used to have an example with the headstamp .380 CAPH which is fairly scarce. I believe it stood for Colt Auto Pistol Hammerless and was not used for long.

Strat72 · Jan 20, 2015

so can you shoot 380 in a 9mm? Like shooting 38 spcl in a 357?

legelegel · Jan 20, 2015

Strat72 said:
so can you shoot 380 in a 9mm? Like shooting 38 spcl in a 357?

Like Mrs. Gump taught her son, "Stupid is as stupid does."

9mm and 380 both head-space off the mouth, not the rim like a .38 or a .357.

poordevil · Jan 20, 2015

legelegel said:
ACP is an acronym for Automatic Colt Pistol. .380 is just a shorten name for .380 ACP, which is also know as 9mm short, 9mm Kurtz, 9mm Browning and 9x17.

They all are the same.

I think the 9 mm Browning (9mm Browning Long [9x20])is a different round. It was used in the Swiss Army Browning pistol , model 1907. The gun looks like the Colt pocket model 1903 , but somewhat longer.

aurora40 · Jan 20, 2015

legelegel said:
Like Mrs. Gump taught her son, "Stupid is as stupid does."

9mm and 380 both head-space off the mouth, not the rim like a .38 or a .357.

Also the 9mm is tapered, so even if the 380 were held by the extractor, I'd think the 9mm chamber would be quite oversized.

CaptRon956 · Jan 21, 2015

Strat72 said:
so can you shoot 380 in a 9mm? Like shooting 38 spcl in a 357?

I certainly wouldn't do it....

Cal44 · Jan 21, 2015

What difference does it make what you call 380's?

They are not adequate for self defence anyway.

(Trying to start a caliber war here)

litenlarry · Jan 21, 2015

Cal44 said:
What difference does it make what you call 380's?

They are not adequate for self defence anyway.

(Trying to start a caliber war here)

A .380 in your pocket is better than a 45 left in the car...

dufous · Jan 21, 2015

Where you put the bullet is what counts

A .45 miss is less effective than a .22 (or .380) put where it counts.

legelegel · Jan 21, 2015

dufous said:
A .45 miss is less effective than a .22 (or .380) put where it counts.

The "ayes" have it.

KEN L · Jan 21, 2015

legelegel said:
ACP is an acronym for Automatic Colt Pistol. .380 is just a shorten name for .380 ACP, which is also know as 9mm short, 9mm Kurtz, 9mm Browning and 9x17.

They all are the same.

And, don't forget 9mm Corto. The Italians liked that round too!

fat tom · Jan 21, 2015

OldK22 said:
also the same as 9mm Kurtz

Maybe I'm just picking nits,but that should be 9mm Kurz.

f.t.

tops · Jan 21, 2015

dufous said:
A .45 miss is less effective than a .22 (or .380) put where it counts.

I have heard that all my life and I always wondered why miss with a .45. My .44s and .45s are as accurate as my smaller caliber pistols. Larry

gwpercle · Jan 21, 2015

Invest in a book called Cartridges Of The World, a wealth of information on a subject that can be very confusing. I keep this one handy to sort out the what is what when names and numbers get thrown around.
This book is handy to use for just sorting out all the different 9mm rounds that are in existence.
Gary

CTG_COLLECTOR · Jan 21, 2015

gwpercle said:
Invest in a book called Cartridges Of The World, a wealth of information on a subject that can be very confusing. I keep this one handy to sort out the what is what when names and numbers get thrown around.
This book is handy to use for just sorting out all the different 9mm rounds that are in existence.
Gary

Actually, this book is the definitive book on cartridges:

Fortress Books - Manual of Pistol and Revolver Cartridges

COTW book tends to have errors in it.

What's the difference between 380 ACP and 380 Auto...

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