Well, I got my base and rings today. To make a long story short, my scope was sitting sideways and I couldn't hit the broad side of a barn. Upon removal of the rings, I could tell the base was not lined up with the barrel. The base seems to have a high spot between the mounting holes allowing it to rock back and forth on the barrel. And the screw holes look too big for the screws, allowing the base to move side to side. With the screws just snug, I can move the base about 1/16" side to side. I was just wondering if you've ever heard of this. Think I got a "bum" base?