Fairly new to shooting so forgive any dumb questions please, especially if this is one
I took out my first rifle purchase out for a test shoot today. Its an almost imaculate M39 Finnish Mosin. Shoots straight at 50 yards although I'd forgotten what a kick a 7.62 has lol! I stopped firing however when I saw this case I'd just ejected. Its got a fairly big crack in the case.

Its Bulgarian surplus ammo. I fired 20 or so rounds before I noticed this one, all ok. My question is, should I be worried about a pressure problem? I took it to my local gun shop and the guy there said its more likely to be an ammo problem than anything else. He checked the bore out and seemed happy with it, but I thought I'd throw it out there to see if you guys had had this problem with surplus ammo before.



