Ok I have always had this issue when at the range with my parallax. To check it I have my dioplor focus set by looking at a white wall or solid color and only look through the scope for a second or quick glance to get he reticle clear then its set and I leave it. To get parallax out I set the rifle on the bench and get setup look down my target keeping the rifle steady and adjust the parallax till the scope is clear then I will fine tune it by moving my head around to see if the reticle moves while moving head around. I never can seem to get all the parallax out the reticle seems to always move around about 1- 1/2 the size of my bullseye which is 1" or so. Am I doing something wrong? This has been an issue with me for every scope with a parallax adjustment. Vortex viper, 2 viper pst, leupold vx5hd, night force nxs, and a Trijicon accupower. I have this issue with all of them and I think I'm focusing them the correct way and still can't grt all the parallax out. Am I crazy thinking it will all be gone? Any help/advice would be great.