Re: bullet drifting right at 500 + yards,
When sighting in a Sauer 200 STR (6,5x55) at 300 meters and then going to 600 meters, the rotational drift (spin drift?) is 8 cm to the right. That equals about 0,13 MILS. If you have sigthed in your rifle at 100 meters, the drift is of course bigger at 600 m than 0,13 but not by that much.