Finished up sighting my rifle in today VX-3, 3.5x10x40mm CDS. Well this is what happened sighted in at 300yds then put on my Ballistic matched Dial and adjusted index it 300yds, so good so far went to 200 yds to check POI shot 3 good, dialed in 450 yds or 5.25 MOA shot 3 impact was 10.5 inches high right on where it is suspose to be. now, set it on 645 yds which is 10 MOA fired 3 looking for 20 inches & these only went up 6.3 MOS or 12.6 inches high at 200 yds my Dial goes beyond 750 YDS but I can only get 2 clicks after 700 yds when it stops. It feels normal from 200 to a little over the 700 yds mark hash 2 clicks did I run out of elevation at 500 yds 6.23 MOA ? Even though it feels normal.