I've been eyeballing some used Leupold 6.5x20x40a.o. and I want to know if any one has any experience with these. Maybe a Vortex Viper in the same price range? I've been using two Milletts, both the trs and the lrs. The lrs tracks [email protected] iphy for 4 clicks. Not 1moa, but it is consistent and I can deal with that. It lacks clarity at high magnification and I cannot eliminate parallax at 900 yards and beyond. It claims 120moa adjustment range, but the reticle moves maybe 90 moa, and at both extreme extremes. So I get 60 moa from a scope that sits so high in factory provided mount that I can't get consistent eye positioning from a lack of cheek weld, to amplify the parallax issue. It almost does what I need it to. So close.