Bought a set of Millett rings and mounted them on my Handi-Rifle. They worked fine. I removed and remounted them, and now if the group is on at 25 yds, it's 3" right at 100 yds. I believe the scope is not true to the bore, but am not sure which end I should move. The rifle had always been a good shooter, the base is firm, and this very same combination worked fine the last time, so it must be something I did or didn't do the same. Is there a measurement I should try to get the scope true to the bore? Am I missing something? Should I just start over?
