Originally Posted by lisagrantb
I'm not disagreeing with you but when I put the gun in a vise and watch the crosshairs move on the target, that isn't shooter error and the range test repeats exactly what the vise test shows.
While it is possible the Nightforce has a problem...the odds most definitely are not in your favor.
I don't doubt that you can change POI. You can't put pressure on a full floating barrel or scope/receiver and not expect a change.
Shoot the rifle in a cradle/rest or ask an experienced shooter to test the rifle for you. Once you eliminate the possibility of shooter error you can move ahead.
Your drifting point of aim could easily be attributed to trigger operation or rifle/body position errors.