Given the weather today I decided on a few hours in the barn gathering data on my scope(daveyt) inspired I got a 40yard zero resting, pellet through pellet very happy!(I might add it was with the unbent as fields) the misshapen ones wouldn't hold as tight a group as suggested to try anyway..... I went from 6 mag up to 10mag no problem worked out different mil dots at various ranges all good, go back to 6 mag and zero has dropped by a good inch!? Can anyone suggest why? I got it back to zero again but obviously a lot further around the elevation turret than 10 mins ago, if it helps its an sr6 a