Dangerous 7.62x39 Warning.

[PMDW]

This happened over a period of two weeks, using Yugoslavian 7.62x39 all 3 times.


Day 1 - Rifle functioned fine on semi and auto for around one and a quarter magazines. Then it suffers a broken case which became lodged in the chamber.

Day 2 - After extracting the broken case, the rifle was fired again using the same ammunition. On the first round, a case breaks again.

Day 3 - This time, having brought the broken shell extractor, we fought through 3 more broken cases. About 2/3 thirds through the first mag, a case breaks at the wrong place, at the wrong time, casuing the top cover and recoil spring to go flying, the selector lever rivet to fly off, and the selector to become bent out of position.


It's brass cased. Headstamped 1994, with some russian writing. Looks kind of like "nnY". If anyone has any of this stuff, I suggest throwing it all away right now. Or at least not shooting it.

 

[Fumbler]

Just curious, what gun was this shot out of?
What kind of case break? are the heads coming off?

 

[PMDW]

Select fire AKM.

Cases broke pretty far back. The one that did it in broke 7mm from the end of the case. The others broke a few mm farther up than that. I'll get some pictures later.

 

[Bwana John]

Hows the headspace on that rifle?

 

[PMDW]

Couldn't tell you, it's not my rifle. I do know that it functions fine with other ammo, though.

 

[HankL]

Question is does it function fine with other ammo now? I hope no damage was done to the chamber.

 

[R.H. Lee]

Thanks for the heads up.

 

[PMDW]

Question is does it function fine with other ammo now? I hope no damage was done to the chamber.

Going to run some wolf through it the next time it goes out to the range to be sure. Only damage to the chamber is the 90% of case still lodged in there. Nothing a broken case extractor won't fix, though.

 

[Kodiak AK]

Why in the world did you keep useing it?

 

[Johnny Guest]

Interesting, and a bit distressing

PMDW - -

Please tell us where you bought that ammo. Also, please describe the packaging, so we can all keep an eye out for it.

Thanks for the heads up.

Johnny

 

[PMDW]

It's actually not my ammo, so I can't tell you much about its history. I have no idea where it was purchased from, but the guy has had it for several years. Came in a wooden crate, containing white boxes of 15 rounds each. That's about all I know. I'll find out more when I can. Around Tuesday or so.