Bud Hyett
posted this
17 October 2019
Not sure but think I had readjusted the crimp die which I think added a stronger crimp which from what I have read will change the impact point..Does this make any sense?
Yes, it does make sense. Each firearm is a law unto itself and sometimes little changes mean a lot; sometimes little changes do not mean a lot. There are many variables. Not only can the impact point be changed, but the group enlarged with this change.
Add o this the possibility of the aiming device going bad, the suggestion to use the iron sights for testing and confirmation is good.
One other test is to test the shooter. Take another pistol, preferably low recoil, to shoot to assure you are shooting well on this day. When I am serious about testing loads for rifles, I take my BSA international to shoot first to assure I am having a good day. It is the one known rifle that I own which shoots well. As strange as this sounds, there are days when I am the discrepancy.
Farm boy from Illinois, living in the magical Pacific Northwest