Don't know what forum this belongs in but it's been bugging me for a while now. So, here goes. Steyr rifle shoots 1/2 to 3/4 groups all day long but one day the group is dead center at a hundred. The next day it is still a tight group but now it is two inches left of center. Next range session it is 3 inches low or three inches high. Never seems to be in the same place. I sighted in for a long range hunt before christmas and was printing 1 inch at two hundred. Did not get a chance to shoot that day. Yesterday I shot the rifle and the group was still one inch but now is two inches below the bull at two hundred. What am I doing wrong. I reload and the rounds are from the same batch. what are some causes of this?
That was my first thought also. If the scope or mounts were loose it would not print a tight group. Must be the stock. I can't find any rub marks on the stock and I can run a dollar bill around the barrel all the way down to the receiver so I know that it is free floated. I've been shooting for 35 years and just can't seem to put my head around this issue. Thanks for the help
Rather than equipment, I would suspect that your 'position and hold' from occasion to occasion may be different.
-different surface under your bipod?
-leaning into the bipod for 1 group; but not the next?
-pulling the rifle into your shoulder for 1 group but not the next?
-differing cheek pressure on the stock etc............
All the best