I have a question: I purchased a rifle for my son and having problems with the scope ring mounts. The rifle is a Browning X Bolt Hells Canyon and I was attempting to mount some Talley 1 piece rings. I was in the process of mounting the bases and was to my last two screws on the front mount. I was in process of tightening the screws and they never would tighten/cinch all the way down. I was a bit puzzled so I go to loosen them and remove them. They won't remove either. So I have the mount stuck on the rifle and the screw won't loosen or tighten. Any thoughts here?