I have two 16" mid-length 1:7 twist uppers. When I take an Aimpoint in a LaRue mount that's been zeroed on one of the uppers and put it on the other upper it shoots about 6-8 MOA left with no vertical POI shift, using the same ammo.
I'm just curious if this is a typical amount of variance in POI between uppers? I'm not expecting the Aimpoint to be dead on when switching between uppers, I just would have thought there'd be less of a variance between such similar uppers. The Aimpoint does return to zero when put back on the first upper.


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