Close your eyes and shoulder the rifle. When you open your eyes the sight picture shoud be good, if not you need to adjust either scope/mounts or lop. If the rifle feels off while your eyes are shut the fits not right and you may consider a different stock/design. I get funny looks when closing my eyes and shouldering a rifle for the first time but it's my best way to get a first impression of it's feel/fit.

If memory serves me correct you seem to come back to the fit/feel of the M77's over all others. It might be time to accept the fact you prefer the ruger and build your cabinet accordingly.

Good Luck