Ruptured American Eagle 9mm

[Carlfer]

I was going through some brass I picked up after shooting with my neighbor, and found this.





By the firing pin hole marks in the primer, it was fired though his Gen4 Glock 19. These were factory Federal American Eagle 147gr loads.

Any ideas?

 

[yellowsled]

Guns that are made out of plastic, suck

 

[Jimbob2.0]

I'd be thinking gun chamber not brass

 

[sgt23preston]

Sgt Preston here...

Too much powder...

An overall length set too short...

It also could have been simply a defective brass casing...

It is also possible that it was an old casing that had been reloaded too many times...

In any event there was too much pressure inside of the case...

 

[zoostation]

Weak piece of brass or overcharged round that slipped past QC.

 

[Deep Creek Rock]

The primer mark does not look at all unusal - sometimes the marks are elongated from rolling off the firing pin, when being ejected. I see that on cases somewhat frequently - in various semi auto calibers. If it piereced the primer - that would be an issue. But primers markings alone dont always give good indictations of overpressure

The split however is not common.

 

[Carlfer]

The primer mark does not look at all unusal - sometimes the marks are elongated from rolling off the firing pin, when being ejected. I see that on cases somewhat frequently - in various semi auto calibers. If it piereced the primer - that would be an issue. But primers markings alone dont always give good indictations of overpressure

The split however is not common.

I showed the primer just to show it was a glock.

 

[lx1x]

maybe the bullet was seated wrong (deeper than it should be ) = over pressured.

 

[BradMacc82]

Factory loaded or reloaded?

Number of factors could be to blame...

 

[CypherPunk]

Factory loaded or reloaded?

Number of factors could be to blame...

Original, factory loads per the OP.
Shipped directly from ammoman.com
It was my firearm.

 

[Braddbdl]

I've had a fair amount of these using Winchester White Box ammo, looked exactly like that. Other than not being able to use that brass to reload, there were no other problems.

 

[BradMacc82]

Hmm, possibly just a weak case with too much pressure then.

 

[guthook]

I've had a fair amount of these using Winchester White Box ammo, looked exactly like that. Other than not being able to use that brass to reload, there were no other problems.

I believe SMRosado was having severe splitting issues with WWB also.

 

[Braddbdl]

I believe SMRosado was having severe splitting issues with WWB also.

Yep, he was. I stopped buying WWB, and now use either Remington UMC or Blazer.

 

[CypherPunk]

Yep, he was. I stopped buying WWB, and now use either Remington UMC or Blazer.

Lou recommended American Eagle to me.

 

[Lou45]

Where did you buy the 9mm 147 grain Federal ammo???

 

[tball]

I've seen that before. Is it possible that someone might have shot that out 9mm round out of a .40 caliber?

 

[Baccusboy]

This is why I don't buy American Eagle. I see more and more guns blown up as a result of this garbage. I'm under the impression that the foreign cheapee-ammo by S&B et.al, or local reloads are of far better quality. Not trusting my guns to this crap, or WWB anymore.

 

[Boom Boom]

Don't ever shoot 17MHR. Probably one of every three or four spent cases looks just like that.

 

[tdt91]

Original, factory loads per the OP.
Shipped directly from ammoman.com
It was my firearm.

please check other brass from that brand you have. In my experience most factory ammo has brass colored primers. I'm thinking you found a to many times reloaded case. Or, it was a bad case, wouldn't be the first time it has happened.