ctgrizzly2hunt2
Member
I found a couple of 9mm at range that I picked up with primer blown outward. It’s scary to know that people out there are overcharging their load. Would you reload this or toss brass?
Look what I found at range- yikes
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bullseye308
Member
Could be a factory round and gun problem. S&B brass is known for tight primer pockets so maybe they didn’t get it seated all the way or over swaged it and loosened it up some, or maybe just overcharged it.
lightman
Member
I would reload it and shoot it. That is, if I had a gun in that caliber.
Charlie98
Member
I'll bet you that's a .380 case fired in a 9mm...
BreechFace
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Would be my guess as well.
jebova2301
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Gonna be totally honest, it looks exactly like some of my primers do when I am firing new brass that has an ungodly primer crimp. Almost looks like the dude tried knocking the primers out, didn't have much luck, and may have just checked them on the floor for the next guy. The primer isnt at all flattened, and hasn't flowed at all around the radiuses edges. Doesn't look like a real overpressure sign to me.
wankerjake
Member
As other stated that’s a 380 (S&B labels their 380 as 9mm Browning Court) and if I had to bet on it, the weird primer was caused by something other than a hot handloader
__steve__
Member
I have seen a bulged primer like that before, it gave me a squib! Was with my 500 S&W magnum for one particular brand of commercial ammo (PM if you are curious the brand). This was before I loaded myself so I was relying on purchasing ammo and I bought few boxes of both 44 and 500 from this place. I noticed random light recoil shots with the 500. Later I chronographed them:500SW 350 grain JFP
1297
1195
1168
1257
Moderate and inconsistent 500 loads, and the last one went "click" and my cylinder wouldn't open because 1mm of the bullet's base was sticking out the forcing cone. Once I cringingly tapped it back down, I pulled the case and unburned powder fell out along with a glob of partially reacted powder.
I wonder if the primer can balloon out like that when the powder doesn't fully ignite and propagate the reaction and there's not enough pressure to release the bullet. The pressure stays within the static volume of the case and the primer bulges since there's no kinetic force seating the case on the frame, so it just bulges out until the bullet pops out.
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milemaker13
Member
Is that actually possible? The 380 case is shorter and headspaces on the case mouth. Wouldnt the round simply drop too far into the chamber for the FP to contact?
Maybe I'm wrong (it has happened before, believe it or not)
I'm thinking the same thing as Charlie. A newer shooter that couldn't tell the difference of a 9mm BR and a 9mm Parabellum. (Headstamp clearly says 9mmBr; 9mm Browning aka 380 ACP)..
wankerjake
Member
I’ve never tried it but people 40 S&W in their 10mm Glocks all the time... headspace on the extractor would hold it in place?
ctgrizzly2hunt2
Member
Well, I learned something new today, never hear of a 9mmBr. Is that shot out of a 9mm or .380?
wankerjake
Member
Just another name for .380. Others include 9x17, 9mm Browning (9mBr), Corto and probably 10 others I'm not thinking of offhand.
Jim Watson
Member
What we know as .380 ACP is called 9x17mm, 9mm Browning Short (Yes, there is a 9mm Browning Long.) and various foreign translations of 9mm Short; Corto, Court, Kurz, probably others.
Old Colt pistols are marked ".380 Rimless Smokeless", very old Colt pistols are marked ".380 Hammerless."
.380 in a 9mm Para? Yes, there was an agency that trained its officers to handle malfunctions by slipping an occasional .380 into a 9mm Beretta magazine. The lesser cartridge would chamber and fire, but not with enough recoil to function the action, leaving the trainee with a mess to clean up.
Old Colt pistols are marked ".380 Rimless Smokeless", very old Colt pistols are marked ".380 Hammerless."
.380 in a 9mm Para? Yes, there was an agency that trained its officers to handle malfunctions by slipping an occasional .380 into a 9mm Beretta magazine. The lesser cartridge would chamber and fire, but not with enough recoil to function the action, leaving the trainee with a mess to clean up.
higgite
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Yes, it is possible. A relative of mine who shall remain nameless shot half a mag of .380 ACP in her 9mm pistol. She was having to manually eject every round, so she asked me to take a look at it. It turned out that she had grabbed the wrong box of ammo and didn't notice the difference. I suspect the rounds were headspacing on the extractor, not the case mouth. The slide would short cycle and rechamber the spent case. The best part is, I still get to tease her about it.
Jim Watson
Member
My Dad witnessed a case of cartridge confusion.
He was in the gun & pawn, mostly gun shop, probably picking up some of that nice Canadian surplus 9mm P for my Luger. (1960s)
Another customer came in wanting some ammo for this here pistol. Dealer said he didn't have any of that but something else that would work just as well. Dealer took the gun, loaded it with the alleged substitute ammo and got it hung up some way.
Wrestle, pull, push, yank, jerk, BANG! and put a bullet right between the customer's feet.
Customer and Dad departed.
The time frame was right for it to have been an Astra 400 9mm Largo and .38 Super substituted. The Llama and Star were commonly marked 9mm/.38 meaning 9mm Largo and .38 Auto, but the Astra had a narrower breech face and could not be counted on to accept the .38's semirim. OR it might have been a 9mm Para. Which would often headspace on the extractor. If it got ahead of the extractor, things got more interesting.
He was in the gun & pawn, mostly gun shop, probably picking up some of that nice Canadian surplus 9mm P for my Luger. (1960s)
Another customer came in wanting some ammo for this here pistol. Dealer said he didn't have any of that but something else that would work just as well. Dealer took the gun, loaded it with the alleged substitute ammo and got it hung up some way.
Wrestle, pull, push, yank, jerk, BANG! and put a bullet right between the customer's feet.
Customer and Dad departed.
The time frame was right for it to have been an Astra 400 9mm Largo and .38 Super substituted. The Llama and Star were commonly marked 9mm/.38 meaning 9mm Largo and .38 Auto, but the Astra had a narrower breech face and could not be counted on to accept the .38's semirim. OR it might have been a 9mm Para. Which would often headspace on the extractor. If it got ahead of the extractor, things got more interesting.
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