possible bad brass

I'm not exactly sure what I'm looking at. Has the primer pocket been enlarged? Is that primer squashed?

That is really eff'ed up. Did he shoot it in the wrong rifle?
 
apparently correct rifle and cases split was removed with cerrosafe and gunsmith .Primer hole is cratered and primer is the thing in front of head and came out deformed
same load same cases

the case on the right was the first fired ,the case on the left was the 2nd to be fired and it came out that way with the bolt just a little tight and the 3rd is the one in the opening post also came out with lifting the bolt also a bit tight .No more rounds were fired since the bottom half of the case was in the chamber

the 2 mangled were the way they came out ,they were not mechanically mangled as they extracted from the rifle ,just a bit tighter and not with a beating stick.
Thats what I was Told



View attachment 113321
 
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Looks like major over-pressure. Is that new brass or previously fired? Either way possibly a headspace issue, in the chamber or with the brass.
 
I will talk to him tonite and get back .It was fired 3 times the first was the normal looking second was the one showing slight cratering and the third was the first pic that was removed by gunsmith
 
Did the case head get squashed like that on firing? Or did it get squashed when the case was removed from the rifle with the cerrosafe?

Primer pockets are 0.12" to 0.13" or thereabouts deep and that one is flattened. That brass got squashed by a tenth of an inch. And it's the thickest part of the case -- the head -- that got squashed.

Looks like the sides of the primer cup have been rolled outwards and over themselves.

Did this happen just once or did it happen with multiple rounds?

I'm thinking this is more likely the reloader's error rather than metallurgically bad brass. Too much powder or the wrong powder or both. If he has more rounds that he's not fired, he should pull a few and confirm the charge. Make sure it's the right powder and the right weight.

Or as others have suggested, it's a headspace problem. A tenth of an inch headspace problem!
 
pmatuk said:
I will talk to him tonite and get back .It was fired 3 times the first was the normal looking second was the one showing slight cratering and the third was the first pic that was removed by gunsmith
Click to expand...

Sounds like he is over-sizing his brass and bumping the shoulder too far back, which would cause the pressure signs and eventual case head separation.
 
RWS is good brass, that is massive overpressure.
Ask him what his load was, and what he was loading for prior to this batch.
 
Excess headspace can contribute to case separations. M-S rifles' tolerances can be generous, and/or excessive fl sizing can contribute. Excess headspace can result in flattened primers, even with normal pressures.
A badly deformed case head, such as the one pictured didn't result from a headspace issue. It takes serious pressure to deform a case head that badly.
Could be a combination of things.
Best not to use the rifle & ammunition until there is an explanation.
 
Over pressure, something like 70,000+ psi to do that

DSCF0032bulletpinch308brass243chambercropped.jpg
 
MDF said:
Did the case head get squashed like that on firing? Or did it get squashed when the case was removed from the rifle with the cerrosafe?

Primer pockets are 0.12" to 0.13" or thereabouts deep and that one is flattened. That brass got squashed by a tenth of an inch. And it's the thickest part of the case -- the head -- that got squashed.

Looks like the sides of the primer cup have been rolled outwards and over themselves.

Did this happen just once or did it happen with multiple rounds?

I'm thinking this is more likely the reloader's error rather than metallurgically bad brass. Too much powder or the wrong powder or both. If he has more rounds that he's not fired, he should pull a few and confirm the charge. Make sure it's the right powder and the right weight.

Or as others have suggested, it's a headspace problem. A tenth of an inch headspace problem!
Click to expand...
You don't understand what your looking at yet offer up multiple explanationss? is that you Sunray?
 
Are the photos in Post 1 and Post 3 of the same squashed case?

They look like two different cases. In Post 3, there is a crack or fold at about one o'clock on the rim that does not appear to be there in the photo in Post 1.

On how many cases did this happen?
 
MDF said:
I'm not the guy who commented about not understanding what was shown in the photos.
Click to expand...
You where when you asked,
"Did the case head get squashed like that on firing? Or did it get squashed when the case was removed from the rifle with the cerrosafe",
as well when you said,

"Or as others have suggested, it's a headspace problem. A tenth of an inch headspace problem

"
 
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