Regarding sighting in with the rifle atop rests on a benchtop and held against the shoulder, I and others I've talked with often find zeros got this way are about 1 to 2 MOA to one side from zeros attained slung up in prone. They'll be to the left for a right handed shooter. Ones body mass position differences behind the rifle between the two is why.
Get zeros with both then compare their settings.
|