Rifle: Cooper Jackson Game - 25-06.
Scope: Vortex Viper PST
, 4-16, MOA, FFP
Load: 120 grain sierra HPBT gameking bullets with RL22 powder loaded to Coopers' recommendations. Remington brass, Winchester Primers.
When I am shooting at 100 yds the rifle prints inside a dime and most of the time it will cover holes if I do my job. At 400 yds this rifle shoots everyhwere, plus or minus 8" from hold point. I can't figure out how a rifle that is sub a 1/2 inch at 100 yds can get so bad at 400 yds. Scope tracks perfectly when changing elevation and windage and returns to zero every time.
Any ideas why this would be occuring?