Possible Mosin problem?

[Scruffles]

Last time I was at the range, I looked at one of the spent casings and there was a noticeable crack from the base of the neck down to about half of the case. The ammo I was using was surplus from Dunhams. Does anyone know if this is a ammo problem or a rifle problem? Thanks!

 

[sig1473]

Ammo problem

 

[__Doc_]

first problem is buying ammo from dunhams.

put some some quality rounds thru it and see if anything happens. Its more than likely the ammo you're using, but without quality newly manuf 54r its hard to tell

 

[Mgderf]

Surplus 7.62x54R is known for that. The closer to the case mouth, the less you need to worry about it.
When you start finding cases split or cracked closer to the base of the round than the neck, stop using the rifle until you have it checked out by a competent gunsmith.

 

[Tula47]

I have had the same thing happen to me using 147gr. circle ten surplus

 

[johntheplinker]

Yep, a common problem with steel case surplus. When the cases were formed, the commies didn't bother to anneal the case necks to relieve the stresses from the working of the metal. So then the ammo sits for who knows how many years, and then when the ammo is used, the stress causes a crack to form. I've even seen some commercial steel cased ammo that was less than 5 years old do this.

 

[2ADMNLOVER]

When you start finding cases split or cracked closer to the base of the round than the neck, stop using the rifle until you have it checked out by a competent gunsmith.

So are you saying this could be caused by a rifle issue ?

 

[BiscuitNaBasket]

Last time I was at the range, I looked at one of the spent casings and there was a noticeable crack from the base of the neck down to about half of the case. The ammo I was using was surplus from Dunhams. Does anyone know if this is a ammo problem or a rifle problem? Thanks!

My buddy and I had some similar problems with surplus rounds. The guy sitting next to our shooting bench brought the case over and said it was a head spacing issue but after further INGO review it was determined to be a surplus ammo issue. Here's the link to that thread:

https://www.indianagunowners.com/forums/long-guns/271682-7-62x54r-issues-my-mosin.html

 

[rugertoter]

Ammo problem

What he said!^^^

 

[Scruffles]

Thanks for the clarification I was concerned it could be due to headspace.