|
Forum Rules | Firearms Safety | Firearms Photos | Links | Library | Lost Password | Email Changes |
Register | FAQ | Calendar | Today's Posts | Search |
|
Thread Tools | Search this Thread |
August 12, 2013, 07:17 PM | #1 |
Member
Join Date: May 2, 2012
Location: upstate New York
Posts: 90
|
Firing a 9mm in a .380 pistol
A friend of mine claims he shot a 9mm round in a .380 pistol. I have not seen him do this, I know they are about the same diameter, but the 9mm is longer. Is this possible, is it safe?
|
August 12, 2013, 07:40 PM | #2 |
Staff
Join Date: September 25, 2008
Location: CONUS
Posts: 18,466
|
It isn't possible. The 9mm case is 2mm longer, plus slightly larger in diameter. I'm about 99.936 percent certain that it's not in any way possible to get a 9mm cartridge to chamber and fire in a .380 pistol.
|
August 12, 2013, 07:47 PM | #3 |
Senior Member
Join Date: September 5, 2010
Location: McMurdo Sound Texas
Posts: 4,322
|
I'd also doubt it. The opposite MAY be true, many 9mm pistols will allow you to physically chamber a .380, but that's a highly unrecommended action. The shorter .380 may even fire, but operation may be problematic.
__________________
Cave illos in guns et backhoes Last edited by TXAZ; August 12, 2013 at 07:53 PM. |
August 12, 2013, 08:14 PM | #4 |
Senior Member
Join Date: March 12, 2012
Location: Land of Enchantment
Posts: 436
|
He may be referring to a 9mm short, or kurz... Which is a 380.
|
August 12, 2013, 08:39 PM | #5 |
Member
Join Date: February 2, 2013
Posts: 96
|
seems like it would require a really really really strong recoil spring.....
|
August 12, 2013, 08:46 PM | #6 | |
Senior Member
Join Date: October 12, 2002
Location: The same state as Mordor.
Posts: 5,569
|
Quote:
Unless, distant possibility, he was using one of those antique Astras that headspaced on the rim and were chambered for 9mm Largo. I'd still say "unsafe".
__________________
"As was the man of dust, so also are those who are of the dust, and as is the man of heaven, so also are those who are of heaven. Just as we have borne the image of the man of dust, we shall also bear the image of the man of heaven. " |
|
August 12, 2013, 08:53 PM | #7 |
Senior Member
Join Date: November 30, 2010
Posts: 3,513
|
I'm also going to say not possible. I just tried to stuff a 9mm in the chamber of two .380 pistols and it fit in neither. Did he happen to mention what pistol it was that he supposedly fired the 9mm round in?
|
August 12, 2013, 09:26 PM | #8 |
Senior Member
Join Date: November 11, 2010
Location: Phoenix area
Posts: 1,442
|
I agree that he may have been mistaken on the various calibers that are different variations.
Either that or extremely loose tolerances of the gun, which I doubt. I have not done it with any tools, but just looking at them closely one can see that the 9mm is indeed SLIGHTLY larger in diameter than the .380ACP. |
August 12, 2013, 10:23 PM | #9 |
Senior Member
Join Date: June 24, 2006
Location: Boise, Idaho
Posts: 2,993
|
Not possible. The gun would have been out of battery, and would not have fired.
|
August 12, 2013, 11:59 PM | #10 | |
Senior Member
Join Date: December 2, 2007
Location: Missouri
Posts: 8,306
|
Quote:
Points out how very important it is to know your ammunition. From buying something that just doesn't work to using something potentially dangerous.
__________________
Cheapshooter's rules of gun ownership #1: NEVER SELL OR TRADE ANYTHING! |
|
August 13, 2013, 12:01 AM | #11 | |
Senior Member
Join Date: April 19, 2012
Location: Western PA
Posts: 3,829
|
Quote:
Edit: Looks like Cheapshooter can type faster than I can!
__________________
0331: "Accuracy by volume." |
|
August 13, 2013, 12:42 AM | #12 | |
Senior Member
Join Date: November 30, 2010
Posts: 3,513
|
Quote:
|
|
August 13, 2013, 12:49 AM | #13 | ||
Senior Member
Join Date: December 2, 2007
Location: Missouri
Posts: 8,306
|
Quote:
__________________
Cheapshooter's rules of gun ownership #1: NEVER SELL OR TRADE ANYTHING! |
||
August 14, 2013, 10:24 AM | #14 |
Senior Member
Join Date: February 7, 2012
Posts: 514
|
I forget which 9 I was playing with, but I was on the range with both a 9 and 380 ...BTW, not a good idea, I have since learned.
Anyway, my 9 suddenly stopped firing. Extracted round, tapped mag, rechambered, click, no bang. Swapped mags, same click, no bang. On the verge of deciding something was seriously broken when I looked at the exjected, unfired round, and....yup..... At least in one instance I can verify .380 does not fire in a 9mm... |
August 14, 2013, 07:39 PM | #15 |
Senior Member
Join Date: November 2, 2005
Location: Arizona
Posts: 1,936
|
Yes, it can be done in some .380 pistols { and I assume 9MM Mak }. There is or was a You Tube video of an individual doing so. I forgot which pistol he used, I remember it was one of the Milsurps , perhaps it was a Russian Mak. The 9MM ( 9X19 ) didn't chamber completely and you could see the slide was back about a quarter of an inch. But, it fired and the gun stayed in one piece. Prior to that , I would have also stated it was not possible to do so.
__________________
Ron James |
August 14, 2013, 07:56 PM | #16 |
Staff
Join Date: September 25, 2008
Location: CONUS
Posts: 18,466
|
I don't know of any mil-surps chambered in .380 ACP. 9mm Makarov is a different animal. First, the case is only 1mm shorter than a 9mm Parabellum, and second the case (and bullet/barrel) diameter is larger than the diameter of a .380 or 9mm Parabellum case, bullet and barrel. So you could probably shove a 9mm cartridge into a Makrov (or CZ-82) chamber without too much of it sticking out. If you could make it fire, the bullet would sort of rattle down the barrel, and the case would almost certainly split because there wouldn't be any support by the chamber.
But ... if the pistol fired with the case rim not in battery, I would think the pistol was defective. You can't physically fit a 9mm case into a .380 chamber. The maximum SAAMI diameter for a .380 chamber is .3809+.004 at the breech end, and .3770+.004 at the forward end. A 9mm Parabellum case is .3800 at the case mouth, and .3910 at the shoulder just forward of the extractor groove. As you can see, the case would be an interference fit in the .380 chamber. Last edited by Aguila Blanca; August 14, 2013 at 08:02 PM. |
August 15, 2013, 09:36 AM | #17 |
Senior Member
Join Date: December 21, 2000
Posts: 4,193
|
I find it somewhat disturbing that for whatever reason on many of the gun forums I visit there seems to be a fascination with trying to shoot the wrong caliber for which the gun is chambered. .380 in 9MM Luger, or .380 in 9MM Luger, .380 in 9MM Makarov, etc.
Shoot the caliber for which the gun is chambered. End of story.
__________________
Pilot |
August 15, 2013, 09:38 AM | #18 |
Senior Member
Join Date: December 13, 2007
Location: Whereever Uncle Sam wants to put me
Posts: 415
|
.380 is also 9x17 (9mm Kurz 'short') so yes, it IS a 9 mm... just not 9x19 (9mm Parabellum or 9mm NATO).
There are LOTS of 9mm rounds. 9x17 (.380) 9x18 (9mm Makarov) 9x19 (the 'classic' 9mm...) 9x21 (9 'Largo' if memory serves...) 9x23 (9mm Win Mag, again, if memory serves...)
__________________
Trigger control: The skillful manipulation of the trigger, which causes the weapon to fire, while maintaining sight alignment and sight picture. |
August 15, 2013, 09:49 AM | #19 |
Senior Member
Join Date: October 25, 2001
Location: Alabama
Posts: 18,541
|
Memory did not serve.
9x21 is the Italian cartridge made for use in that repressive country where private ownership of "military weapons" is not allowed. It has a longer case than 9mm P but the OAL is the same, so only the barrel is different in things like Berettas for the home market. 9mm Largo is Spanish made 9mm Bergman Bayard and is 9x23. It must not be confused with 9x23 Winchester, which looks similar but runs at nearly double the chamber pressure. 9mm Winchester Magnum is 9x29, meant for the Wildey. I don't think Wildey ever bothered, the round showed up in an Automag for a short while. Agree with Pilot, the Internet Fascination with ammo substitutions can cause trouble. |
August 15, 2013, 10:08 AM | #20 |
Member
Join Date: August 14, 2013
Posts: 20
|
It's not possible because 9mm is a hair fatter as well as being longer; however you can (not recommended) fire a .380 out of a revolver that's set up to shoot 9mm. I've been told that this is not a good idea, but I personally don't know the reason. I'm sure someone on here knows the deal with that.
|
August 15, 2013, 06:55 PM | #21 |
Senior Member
Join Date: December 22, 2009
Posts: 307
|
Firing a 9mm in a .380 pistol
|
August 16, 2013, 08:47 AM | #22 |
Senior Member
Join Date: December 13, 2007
Location: Whereever Uncle Sam wants to put me
Posts: 415
|
Thanks Mr. Watson for setting me straight. I am NOT a 9mm guy, so it had gotten fuzzy.
__________________
Trigger control: The skillful manipulation of the trigger, which causes the weapon to fire, while maintaining sight alignment and sight picture. |
August 16, 2013, 10:15 AM | #23 | ||
Senior Member
Join Date: October 20, 2007
Location: Richardson, TX
Posts: 7,523
|
Quote:
Quote:
9x19mm revolver moon clips will not engage a 9x17mm case properly due to its smaller diameter at the extractor groove. Some 9x19mm swing-out cylinder revolvers use special retracting extractor tabs rather than moon clips, but these tabs generally won't engage a 9x17mm case either. Additionally, 9x17mm cartridges will not headspace properly in 9x19mm revolver, and the firing pin will usually push the shorter cases into the chambers rather than firing the rounds.* Finally, even if the headspace problem is somehow overcome and the shooter gets the rounds to fire, the 9x17mm cases may rupture around the case head due to the absence of proper chamber support. *FOOTNOTE: Contrary to what many semi-auto shooters believe, most modern revolvers chambered for auto-pistol cartridges have shoulders cut in the chambers for correct headspace, just like an autoloader does; this allows them to be fired without moon clips. The reason for the clips is to allow a conventional cylinder ejector star to eject the fired cases.
__________________
"Smokey, this is not 'Nam. This is bowling. There are rules... MARK IT ZERO!!" - Walter Sobchak |
||
August 16, 2013, 10:25 AM | #24 |
Senior Member
Join Date: November 20, 2008
Posts: 11,132
|
It didn't happen.
First, your friend would have had to load a 9mm into a .380 magazine - not possible (or load it into the chamber by hand - also not possible). Second, your friend would have had to jam the bent (from jamming a 9mm round in it) into the mag well - also didn't happen. Third..... well, nothing much is going to happen even if he did manage to jam a 9mm into a magazine and jam the magazine into the gun. |
August 16, 2013, 10:36 AM | #25 | |
Senior Member
Join Date: October 25, 2001
Location: Alabama
Posts: 18,541
|
Quote:
At first IMI said they would make a lengthened 9mm P. The Italian version of BATF said that was insufficiently non-military. So IMI said, How about we neck up 7.65 Luger to 9mm (and trim a bit.) Italians say OK. Even though the end result was the same cartridge. That worked in the Beretta and other 9mm platforms. And good luck finding any of IMI manufacture, Fiocchi seems the only source. Colt went the other way. You will occasionally see a Commander in 9mm Steyr; which is a straight cased 9x23; pretty much a rimless .38 Super. I guess the Italians had forgotten the Steyr Hahn of WW I Austrian issue. |
|
|
|