I have a Winchester 9422m built in 1974. Nice shape, but not a collector. I can't see the iron sights and need to put a scope on it to make it useful. I like to keep my guns looking as nice as possible and those grooves look like they can be damaged easily if you over tighten a poor fitting mount. Anyone have some experience(good or bad) that can steer me in the right direction or save me from disaster?