The new gun had an old weaver 4x scope on it and I didn't like the fine cross hairs, so I put a scope that I had recently taken off another gun on. The weaver scope worked on the gun just fine but I didn't like the fine wire cross hairs. The scope that I was trying to use on it worked good on other gun also, the only thing I bought new were the rings, I don't remember brand but inexpensive. I seem to recall an article that I read years ago about being able to use a mirror and watch through the scope while adjusting the windage and being able to see cross hairs line up? Any of that make sense? The scope is an old 4x tasco pronghorn so probably doesn't have stops on the screens.