Reloaded 9 mm case failure

[Splatter]

Yup, had the same sort of thing happen to me 6-or-10 times back in the '80s. All from shooting too hot a load from an unsupported chamber, I.E. 9mm Major from a standard-type of 1911.
I found that the Pachmayr rubber grips, with the steel insert just shrug-off that sort of stress, whereas a wooden grip like walnut will shatter and a laminate grip will crack quite severely.

 

[GunGuy34]

This is why i dont reload. Id be scared of stuff just like this.

 

[ipscgraz]

Time for the obligatory (and valid) plug for eye protection.

 

[pats]

Had it been a complete case seperation, the diameter of the brass would have at no place on it, been larger than the inside diameter of the chamber.
The subject ruptured case has been blown out to be much larger than the chamber and could not possibly be pushed back in the chamber.
Please explain how this could have happened in the chamber.

i was just making a suggestion that it can be worse, i'm not worried why or how this case blew out, i'm speculating just as much as every on eles on how and why this happend, i just say that it could be a weak case, maby reloaded one to many times, who knows, it happend, some it happens more too, if its happing often its time to change some varibles. one case out of 1000's is not a problem when you see more then it may be a problem.

i'm not god, so i dont know what all the varibles are to make this happen.

this is a good start on how it can happen,

if you look at his picture and this picture looks like it could happen this was considering it blew out thru the mag,
but i dont even know if his barrel is like this, again not god and again i dont know everything i just give my best answer to some one who asked a question .
take it all with a grain of salt ..

 

[Splatter]

Excellent pix, Pats!

 

[B. Donaldson]

That is suppose to happen when you shoot a Glock. Was it?

 

[Prospector]

Could you post a picture of the primer? Wondering what it looks like.

Be happy to. I'm out of town tho for a day so I'll do this when I get home tonight.

 

[Prospector]

Time for the obligatory (and valid) plug for eye protection.

Absolutely! I wear glasses so it's there anyway. I didn't mention this earlier but I also felt some powder blow back on my face even though I was holding the gun at arms length. The glasses probably stopped some crap going in my eyes.

 

[Prospector]

That is suppose to happen when you shoot a Glock. Was it?

Was it a Glock? No, it's Jericho 941. I'll post a pic of that along with the primer view of the casing tonight.

 

[punkrockboy]

Please explain how this could have happened in the chamber.

I witnessed a Kaboom with a Para GI Expert this past summer with a doublecharged case. The brass looked identical, this is what happens in an unsupported chamber. The weakest point blows out( the only part of the brass casing that is unsupported).

 

[glycerin]

If your brass had an unsized bulge,AND your primer wasn't fully seated, you could have a slam-fire(not fully chambered). If the bullet wasn't secure in the case(insuf neck tension), it could have deep seated while feeding, and skyrocketed the pressure.

 

[john simmons]

I witnessed a Kaboom with a Para GI Expert this past summer with a doublecharged case. The brass looked identical, this is what happens in an unsupported chamber. The weakest point blows out( the only part of the brass casing that is unsupported).

I'm kinda stuck on the charge issue also. That's why i want to see what the primer looks like, even though it may not show pressure sign's due to the case blowing out. Worth a look anyways.

 

[Prospector]

I'm kinda stuck on the charge issue also. That's why i want to see what the primer looks like, even though it may not show pressure sign's due to the case blowing out. Worth a look anyways.

Ok, here ya go. Not the clearest of pics, but you get the idea anyway.

 

[Prospector]

Wow, glad you are OK. Do you have a picture of your gun and mag?

Here ya go:

 

[john simmons]

Well Prospecter, the primer doesn't look flat or cooked. Thanks for posting a pic. Interesting thread none the less. I shoot my reloads until the brass cracks from the mouth back and have never seen a blow-out like yours. Still wondering what happened.

 

[Splatter]

Well Prospecter, the primer doesn't look flat or cooked.

Maybe not flat; but look at the crater!

 

[john simmons]

I did see that, but was unsure if that was a common strike with the Jericho pistol. Don't know anyone that has one and have never had the chance to shoot one.

 

[BCboy]

Maybe not flat; but look at the crater!

I have seen craters like that from factory ammo quite often and light handloads (4.1 win231 under a 124Jacket)

 

[Cocked&Locked]

If your brass had an unsized bulge,AND your primer wasn't fully seated, you could have a slam-fire(not fully chambered). If the bullet wasn't secure in the case(insuf neck tension), it could have deep seated while feeding, and skyrocketed the pressure.

damn some one beat me to it. I was going to ask about primer seating.

 

[Cocked&Locked]

heavy strike on the primer and maybe a bit oversize on the firing pin hole, but i wouldn't worry about the primer, looks ok to me. No flatening or other signs. Write it off to a bad piece of brass and get back to shooting. it happens if you reload enough handgun using range brass. You did good unloading and checking the bore and the rest of the gun.