Originally Posted by
Semisane
Well, it's going to be an easy test. Shoot both barrels with 65 grains of powder at 25 yards, then both with 85 grains. Then I will know the "hole" truth.
Try 50gr. The pattern of double regulation is more like an X shape. If I can describe it, the right bbl will not only move right when slowed, it will climb due to the recoil.
The 8” group at 25 isn’t ideal, but you should be able to reduce and maybe eliminate the crossing.
Have fun, that’s what’s most important.