I like the Leupold rifleman base because it has an extra slot slot to allow fore and aft flexibility, otherwise the same as Weaver. I have learned to live with Weaver rings. After lots of years, I have pretty much learned how much torquing the screws rotates the scope, and usually end up spot on. I really like the X-low Z rings, had have several low Warne sets also. The regular Leupold base is too heavy and too high for my likes on the Marlin. Sculpted two piece bases would be OK. Jack

"Do not blame Caesar, blame the people...who have...rejoiced in their loss of freedom....Blame the people who hail him when he speaks of the 'new, wonderful, good, society'...to mean ,..living fatly at the expense of the industrious." Cicero