I have Contenders so this is suspect from the start. I shoot the combo I am going to hunt with prior to hunting. It gives me confidence in the gun and ammo as well as my own ability. Since the scope is mounted to the barrel I have never thought I would have to change the scope settings and I never have. I use the same forend and spacers to float the barrel, and my hinge pins are all within spec as well as frames and barrels. I have never had a problem, but YMMV.