Mod
I fired my rifle (Rem 700 .243) today with the mod on to check zero, it was slightly out first time for about 2 years I have had to adjust it and I am out a couple of times per week. I adjusted on and got a group 1/2 inch ish. I took the mod off and grouped 1, 1/2 inch and 3 inches high. Perhaps group size increase is down to flinch? I doubt it though because it is a heavy rifle and only. 243 so the recoil is negligable. I expected the POI to be else where down to a massive change in the barrel harmonics.
Dave