Smeeg Posted March 12, 2015 Share Posted March 12, 2015 I've had 2 or 3 .380 cases make it to the resizing die before I caught them and started wondering what would happen if I don't catch one and load it to 9mm specs? BTW I hate .380! Link to comment Share on other sites More sharing options...
kneelingatlas Posted March 12, 2015 Share Posted March 12, 2015 I was loading some light steel loads (3gr Clays under a 115, so I loaded one up and shot it, interesting experiment, here's what happened: If one is not available how about running a 10mm with bullets long? ( Atlas hows that working out?) I send my slide off for milling work, so I've haven't fired any more .40 through it, but I did do an interesting experiment with a .380 case which made it's way into my 9mm loads: it was a light steel load (3.15gr Clays under a 115) so I figured I'd shoot it and see what happens It chambered fine and I could see the rim was securely behind the extractor so I shot it; it sounded funny as the brass fire formed to the chamber, but when I extracted it I could see what that article (http://www.thegunzone.com/10v40.html) warned of: there was a scratch in the rim where it pulled past the extractor with the primer ignition then it was slammed back into the breech face, flattening the primer against the head stamp. Granted, this is obviously less likely to happen with 40/10 because the rim is exactly the same, but I can now see how it could happen. Link to comment Share on other sites More sharing options...
Butterpuc Posted March 12, 2015 Share Posted March 12, 2015 I have never fired one, but I have loaded quite a few 380s with a 9mm load. I have always caught them while chamber checking. Also, I can feel a difference during the sizing operation. Like I said I have never fired one of those rounds. I'm not sure I would want to. Link to comment Share on other sites More sharing options...
Miranda Posted March 12, 2015 Share Posted March 12, 2015 skip the excitement. the one I have made looked strange so I disassembled it. the are pretty easy to spot. miranda Link to comment Share on other sites More sharing options...
Steve RA Posted March 12, 2015 Share Posted March 12, 2015 Many years ago I loaded one out of curiosity and fired it. Looked a little strange but did not do anything unexpected. I fired it in a 9mm so didn't experience the actions mentioned above. Link to comment Share on other sites More sharing options...
nitrohuck Posted March 12, 2015 Share Posted March 12, 2015 I shot an accidentally loaded .380 outta my 9mm. I caught it beforehand and saved it for the range just to see, nothing overly exciting happened. Now I wonder what will happen if I fire this .357sig case that I've managed to stuff a .40cal bullet into of out of my 2011 I won't be finding out though, that gun just got a brand new barrel! I know you can make .357 cases from .40 cases, but idk about the other way around Link to comment Share on other sites More sharing options...
chuckols Posted March 13, 2015 Share Posted March 13, 2015 I have run into issues of 380's range pickup getting into the 9mm brass hold bins. Sometimes I can spot them when I sieve or tumble the brass. HARD TO DO.. O/W my best indication on my Dillon RL 550B when running 9mm's: A 380 can be detected in die #1(Resize and deprim). When you raise the turret, the normal resistance created by a 9mm case is notoceablyu absent and the deprime moment is much softer, requiring way less weight on the operating handle(in all instances noted the shell plate is fully loaded with cases on each station). When I feel that soft desize/deprime action I stop, I do not insert the primer, I pull the case and a quick inspection always shows a 380 case. It goes into the hold box for that size case and I resume, indexing the shell plate one step, clearing the #1 station for the next 9mm case leaving the #2 station open and avoiding a "double" powder drop!!. Hope that helps in "catching " those terrible litlle buggers!!! Chuck Link to comment Share on other sites More sharing options...
SDM Posted March 14, 2015 Share Posted March 14, 2015 ...Now I wonder what will happen if I fire this .357sig case that I've managed to stuff a .40cal bullet into of out of my 2011 I won't be finding out though, that gun just got a brand new barrel! I know you can make .357 cases from .40 cases, but idk about the other way around I've done this with three cases. I didn't trust them for a match but worked fine. Link to comment Share on other sites More sharing options...
motosapiens Posted March 16, 2015 Share Posted March 16, 2015 probably nothing exciting would happen. I work with LEO's, so naturally I've seen the results several times of firing a 40 out of a 45, or 9/380 out of a 40 barrel. No biggie. Makes funny looking brass. Link to comment Share on other sites More sharing options...
WillM Posted March 16, 2015 Share Posted March 16, 2015 Not so sure that nothing would happen in all instances. Normally using a 1050 to load 9 major, when I get a .380 case I feel something different on either the deprime or prime station. Several times I've caught it with my visual powder check as I'm about to place the bullet - I look into every case before placing bullet. Somehow this one got into the loaded case bin but I found it during case gauge. This has reinforced my resolve to check (by looking into each case for proper powder level) and double-check (by case gauging) each round. As the picture shows it would be easy to load the cartridge made with a .380 shell casing, on the right in the picture, into a 9 major gun. I'm not too sure the results would be real pleasant considering there are 7.7 grains of Silhouette in that load.. 9mm case on left. .380 case on right Link to comment Share on other sites More sharing options...
acoop101 Posted October 29, 2015 Share Posted October 29, 2015 They won't shoot in any of my cz's I have had a few get past loading and into my bulk training reloads then they seem to just become malfunction drills. Link to comment Share on other sites More sharing options...
njl Posted October 30, 2015 Share Posted October 30, 2015 I've never loaded one that way, so I don't know...but when .380 has gotten mixed into my 9mm brass, they've been kind of obvious, as the force to resize them feels more like a 9mm case being resized a second time than a normal one, and they tend to fly out of the shell plate on my RL550B on the upstroke when trying to seat a primer. Link to comment Share on other sites More sharing options...
bikerburgess Posted October 30, 2015 Share Posted October 30, 2015 (edited) I've done it, and it's no big deal, because you are seating to a overall length there is no difference in case capacity for the powder so pressures are the same as your regular loads, the only issue is weather your extractor will hold the case good enough to fire it. Edited October 30, 2015 by bikerburgess Link to comment Share on other sites More sharing options...
njl Posted October 31, 2015 Share Posted October 31, 2015 But .380 brass tends to be slightly thinner than 9mm, and .380 has a lower working pressure than 9mm...so it's conceivable that what's normal for a 9mm load could do bad things in a .380 case. Link to comment Share on other sites More sharing options...
wgj3 Posted October 31, 2015 Share Posted October 31, 2015 I've had it happen a few times myself (with light 3gun loads) and decided to try firing them to see what would happen...they went bang...nothing more to see here. Link to comment Share on other sites More sharing options...
longbeard Posted November 3, 2015 Share Posted November 3, 2015 My CZ eats up em no problem. Link to comment Share on other sites More sharing options...
drop45 Posted November 7, 2015 Share Posted November 7, 2015 I've reloaded a couple by accident without much fanfare. They went boom and extracted every time. Link to comment Share on other sites More sharing options...
XxWoodsHunterxX Posted November 7, 2015 Share Posted November 7, 2015 I've seen a few shot out a 9mm and they looked over expanded but no damage to get gun Link to comment Share on other sites More sharing options...
mrpredictable Posted November 7, 2015 Share Posted November 7, 2015 With my load they end up being the same length but in my shadow they take two strikes to ignite. Link to comment Share on other sites More sharing options...
rustybayonet Posted November 10, 2015 Share Posted November 10, 2015 I use a dillon 550 and you can catch 380s in the first station, but I have ran a makorov (9mm x 18) all the way thru and found it with my case gauge. Not sure if it would work in a 9mm but oal was too long for a mak to fit it. Link to comment Share on other sites More sharing options...
valerko Posted November 14, 2015 Share Posted November 14, 2015 How about 40 bullet in 9mm case ? Link to comment Share on other sites More sharing options...
MickB Posted November 25, 2015 Share Posted November 25, 2015 In a Colt 9mm AR, it will feed just fine but will be held by the extractor just far enough forward for the firing pin not to strike the primer... Mick Link to comment Share on other sites More sharing options...
Nebwake Posted November 25, 2015 Share Posted November 25, 2015 I sort all my brass into a empty plastic .40 shell holder then flip it over and stack in nice 50 rd stacks. Its super easy to sort out crimped primers and .380. Sent from my SM-G860P using Tapatalk Link to comment Share on other sites More sharing options...
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