Go back to Shotgunner's post. He is dead on. One thing you can consider for the best stability is to bed the bases on the receiver. If done the right way, in the right order, so to speak, you will end up with the scope, rings, and mounts perfectly aligned with no stress at any connection. The bedding "shim" remains permanently connected to the bases not the receiver. I always do this with military mausers that have had the ears ground down or otherwise have slightly irregular ring surfaces/aligment.
