Case Bulges From An Unsupported Chamber...In 45 ACP??

Can we see a pic of the primer strikes?

Don't know if the Lee bulge buster would help them lol.

At a guess, I'm going to say these were fired out of battery. How long is the case?

.40

I take it that the pic on the right is of the cases on the opposite side of the bulges. Yeah, I've seen those lines, but typically on rifle brass. I've never seen it on pistol brass. That brass is worn out from being sized. Many or all .45 chambers are unsupported. It's a low pressure round and don't need it. Whomever shot those rounds, it looks like hot loads and worn out brass. Kinda weird. Pistol brass usually splits before this happens. Whatever the case, the person shooting those was luck. Real close to a case failure.

Good for the scrap yard. No bulge buster makes those safe.....

Oh, wow. I really have never seen that before with a .45.

I see nothing good about those cases except as an example. So many people think they're Shadetree gunsmiths and Superior handloaders I see nothing indicating either of those on those cases

Walkalong said:

Something belonging to an idiot who wallowed out the "feed" ramp? And over loaded.

And a 1911 with a poorly done breech face judging by the marks on the case head.

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What about a Sub MG like a Thompson? How's their support, and what do they do to brass?......but either way there's a pressure problem.

The primer strike doesn't look like a Glock to me.

The chambers on my .45's are fully supported, the feed ramp ends at the web, much of my military brass has the line across the edge. I've heard rumors that such a mark is from a tommy gun. BTW that brass is not worn out just ruined, I've got brass that I've reloaded so many times you can hardly read the headstamp on it.

GW Staar said:

What about a Sub MG like a Thompson?

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Good thought, but Thompson's leave a distinctive taper to the case, and the FP is much fatter.

Walkalong said:

Something belonging to an idiot who wallowed out the "feed" ram?

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I think Walkalong got it.

luzyfuerza said:

45 ACP loads fired in a 45 GAP chamber perhaps?

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I can't imagine any gun being able to fire with it that far out of battery. The slide would stop long before the round could ever slide up the breech face, because a 45 auto round would not allow the barrel to ever come close to entering the breech cutout.

Walkalong said:

See the light lines on the breech face I pointed to with arrows? If it isn't done right the small thin area next to the slide will be higher than that in the center of the breech face on the other side of the line. That uneven surface will mark case heads just like the ones in your pics. I had to fix this Kimber (By hand, very tedious). You can still see the original machining "line", but it is 99% flat now.

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Walkalong is correct. That line/stamp is commonly seen on a variety of calibers fired in guns with the machining imperfection.

Could be someone trying their hand at .45 Super in ACP cases with an unsupported barrel and non upgraded spring. Bet he battered the hell out of the gun.

I found one with the distinct line in my motley assortment of brass, no bulges though.

A bud of mine shot high pressure 45 ACP loads and experienced case head swelling similar to the picture. Someone loaded and fired in a 1911 high pressure loads that almost blew out the sidewall. That person is very lucky because if the sidewall had blown, the magazine would have been blown out, the grips might have shattered/or cracked, and hurt his hand. I am a strong proponent of those rubber and steel mesh grips that are very strong and protect the hand from an over pressure event.

And there are people who believe that actions are weak and the case is strong.