Just a follow-up. I'm not terribly mechanical, so I took the rifle to a gunsmith this morning. He looked at the bolt and didn't find any places where it is binding, then looked at the fired brass. He then ran his bore scope into the chamber. The rifling and leade look fine, but the chamber itself looks like it was reamed with hammer and chisel. In other words, the chamber hadn't been polished at all at the factory, and there was all sorts of brass caught in the tool marks. He's going to polish it as much as he can and, hopefully, that will cure it. If not, new barrel. Ugh! Gonna have to see what sort of warranty there is from K-Var and Zastava.
