When I replaced my mark 4 with a vx 6 I had the same issue as you but using 162 amaxs in a rem mag. Thought it was the scope adjustment as has been mentioned above (around 1.08in/moa) so just fudged the speed (increase of about 75fps) to match. A while later when I tried a different load in the rifle using 180eldms I just assumed it would be the same with the scope over adjusting, but was surprised when it came to checking at distance is was actually back to around 1.05in/moa. Still have no idea why but it's consistent so havnt worried.
Bookmarks