When I owned a M81 in 308 WIN I used one of the Redfield 3-9x40mm USA-made scopes as re-introduced by Leupold. Mounted it in standard Weaver 2-PC bases and old style Weaver rings - never moved under recoil and I didn't want the long one piece base down the top of the receiver.
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One of the sanest, surest, and most generous joys of life comes from being happy over the good fortune of others.
Archibald Rutledge