So I have a new custom .30-06 and got a good load. Today it would shoot one dead bullseye and the next would be inch low and inch right. My group was in dime size at 100 yardson bullseye but I had 3 in the same spot inch low and inch right. Am I pulling the shot some of the time? Causing it to shoot a little right and low every third shot? What could cause this type of pattern? Thanks for any help.