So I finally decided to put an optic on my Savage Mark II, I had bought the scope bases some time ago and read they were Weaver bases.
I purchased a set of Millett rings and Burris Zee rings, made for Weaver bases but sadly they did not fit; the cross sectional thickness of the bases seems too great for the Burris Zees to even slide onto and the Milletts could not be tightened down evenly and produced a cant. However, the rings fit perfectly on my Ruger 10/22 scope base, which is a combination of Weaver and 3/8 dovetail.
Here’s the Millett ring on the scope base:
Yet it seems fine on the Ruger mount:
Here I try to show the cross section, Savage on the left, Ruger on the right:
Any advice would be greatly appreciated.