Originally Posted by nsaqam


The thickness of the lug should have no impact on the indexing of the barrel.



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I once made a bushing so a Win 94 barrel would screw into a 91/30, headspace, and the sight dovetails would be straight up. No reamer allowed.

If you can do that math, you may get some new insight.

It is two equations and two unknowns.

Extra credit for defining the necessary sampling as the bushing shoulder gets smaller [or recoil lug gets thinner].