I think the best ventage scope for a M-70 would be the 3X and 4X Leupolds or one of the old 2.5X Lyman Alaskans, thats what you saw on them back then if you lived up North..Down South was the Weaver 2.5X and 4X's..The old Weavers didn't fair well in cold weather. I know that for a fact, I was there! smile