Walked into a gun shop,and in the used gun case was an OM SBH. It was in prisitine condition. I gave $450 for it. When I got home,I cleaned it stem to stern. I then began to tighten up all the screws,as each one was loose. When I tried to tighten one of the screws behind the trigger guard,it was already broken off,and fell out!!!! My dream gun for years!!!! Until I get it to the gunsmith to have it repaired,is it safe to shoot a few out of it?? The bore looks unused to me,is there any way of telling if this has been reblued? It serializes to 1970!!! Can't wait to have it back to 100 percent.