davis1as:
I shoot the 300 mag and use Weaver 4 X 4 extension rings to hold a Leupold 6 X 42. The extension rings are high and with a scope that has 4.5 inches of eye relief and no adjustment ring they make the hammer easy to get to and scope far enough forward to not whack me in the head when I fire. I have never had any difficulty with these rings on 30 plus guns.