I'd get it checked. That sounds really strange. Mosin's aren't built in a way that really allowed escaping gasses to go anywhere but blowing the bolt up in your face. If escaping gasses erode the chamber, it'll be bad. If Wolf Ammo is cracking and breaking on you, I'd DEFINITELY get that checked out. But, honestly, by the time the gun is checked out and repaired: you could just buy a new Mosin in many cases.
So, it's up to you, whether you buy a new one or get this one fixed. I've never had a problem with surplus (but the only surplus I've fired is Yugo brass) or new factory. I usually fire Brown Bear and Wolf, myself. And never cracked a single case.
-liberal gun nut = exception to the rule-
-1.24274238 miles, because Russians don't need scopes-
-Gun control was the Klan's favorite law, how can you advocate a set of laws designed to allow the denigration of a people?-