please help me understand what happened
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Arik
Member
What is that?
deadin
US Veteran
Looks like you've been blowing some primers.
(If not, I would keep that gun away from my others in case it's catching.)
(If not, I would keep that gun away from my others in case it's catching.)
Looks like around the firing pin? That is horrible! Has it been blowing / unseating primers? Has it been piercing primers?
deadin
US Veteran
Was that done by one or two shots or has it been growing over time?
I don't know if that that is fixable, but I'm sure S&W would like to take a look at it. (Including a handfull of your fired brass.)
I don't know if that that is fixable, but I'm sure S&W would like to take a look at it. (Including a handfull of your fired brass.)
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That's some pretty serious erosion. What ammo and/or what primers have you been using. If a hand-load, what is the load? That is definitely not normal.
LVSteve
Member
Last time I saw something like that it involved corrosive surplus ammo in a Mosin.
Seriously, I agree with the other posters. There has been some serious blow-by around the primers or they've been flat out pierced.
Instant diagnosis would be either an overlength firing pin or badly seated primers or too hot a handload.
Seriously, I agree with the other posters. There has been some serious blow-by around the primers or they've been flat out pierced.
Instant diagnosis would be either an overlength firing pin or badly seated primers or too hot a handload.
Hand loads using 4.5 gr Unique and some Alcan primers leftover from years past.
They were shoot yesterday 35 rounds of the 150 or so fired is what I found.
Just went back through the brass and found blow by no piercing of primers found.
The 35 rounds is all it took to ruin this nice gun found when cleaning.
They were shoot yesterday 35 rounds of the 150 or so fired is what I found.
Just went back through the brass and found blow by no piercing of primers found.
The 35 rounds is all it took to ruin this nice gun found when cleaning.
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deadin
US Veteran
How old is that brass? Is it something you picked up at the range?
I think I would mike the primer pockets to see if they are oversized.
I think I would mike the primer pockets to see if they are oversized.
I doubt S&W is going to warranty that.
venomballistics
Member
Lay your cards on the table man.
Powder, primer ... all of it.
if your consistency was any worse across those primers, I would accuse you of loading with measuring spoons and a food scale.
Powder, primer ... all of it.
if your consistency was any worse across those primers, I would accuse you of loading with measuring spoons and a food scale.
Art Doc
SWCA Member, Absent Comrade
Reloaded ammo voids any warranty. You say the primers were leaking? Something wrong with cases or primer. I think you're going to eat this one.
deadin
US Veteran
4.5 gr. of Unique shouldn't do anything like that unless you were using a 200gr bullet. I might be tempted to check the charge my measure is throwing or make sure I didn't accidentally have some other powder in the hopper.
(This why I don't like progressive loaders....)
(This why I don't like progressive loaders....)
S&WIowegan
US Veteran
What you're seeing is the result of blowback around the primer. Since you used mixed head stamp brass, it's difficult to blame the brass. The Alcan primers apparently don't fit the primer pocket tight enough.
I purchased a used Les Baer 45 ACP Premier II a few years ago on a well-known auction site. The slide and frame were hard-chromed which supposedly improves durability and ease of cleanup.
I apparently did not inspect the gun thoroughly when it arrived. When I started using it I noticed the primers on my handloads all had a donut-ring stamped on them after firing. The breech face of the gun was severely eroded around the firing pin hole. I called Baer and told them what I had and got an ear full of rant against Winchester white box ammo. Baer says they've been getting damaged pistols from people using WWB caused by gas leakage. The ammo I used was handloads with CCI primers.
I took the gun to Baer's factory and he looked it over. He had the firing pin hole drilled out to normal 45 diameter and replaced my FP with a new one. The breech face still shows a bit of erosion remaining but it's not worsening. Needless to say I don't buy WWB.
The 442 aluminum frame really doesn't handle blow back gas well at all. You could try contacting Alcan but they may not exist today.
I purchased a used Les Baer 45 ACP Premier II a few years ago on a well-known auction site. The slide and frame were hard-chromed which supposedly improves durability and ease of cleanup.
I apparently did not inspect the gun thoroughly when it arrived. When I started using it I noticed the primers on my handloads all had a donut-ring stamped on them after firing. The breech face of the gun was severely eroded around the firing pin hole. I called Baer and told them what I had and got an ear full of rant against Winchester white box ammo. Baer says they've been getting damaged pistols from people using WWB caused by gas leakage. The ammo I used was handloads with CCI primers.
I took the gun to Baer's factory and he looked it over. He had the firing pin hole drilled out to normal 45 diameter and replaced my FP with a new one. The breech face still shows a bit of erosion remaining but it's not worsening. Needless to say I don't buy WWB.
The 442 aluminum frame really doesn't handle blow back gas well at all. You could try contacting Alcan but they may not exist today.
Lee in Quartzsite
Member
Looks to me like the primer pockets are over-sized or the primers undersized because all of the cases have a black ring between the case & primer. Being that the damage was caused by reloads the warranty is void. About all you can do i clean it up and use it as a paperweight
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