The group size is above 6 -8" at 300 yards. The bullet I used was 175 gr berger elite hunter. That held groups out to 500 yards. My son shot a moose with it last week. Not the scope. New mounts, new Leopold scope, all tight. the 9 1/2 " twist was actual measured twist. It doesn't...
I ran into a glitch I have never had before. I loaded 7mm Mag with 160 grain Accubonds. Coming out of muzzle at 2940 fps. Dead accurate out to 250 yards. Velocity doing well. Group size blows up at 300-350 yards. 6 to 8". Same gun, different bullet (competitors bullet, sorry) touching...