American Gunner 3006
Inactive
The rifle: Winchester 70, 7mm rem mag
The bullet: Barnes 150 ttsx
The powder: 62.5 H4350
The issue: Three shots at 100 yards gives a 5-6" spread vertically but they are all dead in line. Firing through a chronograph at 3124, 3125, 3145 fps (21 fps extreme spread). Action on the rifle is glass bedded and everything is tight.
The question: What would cause that kind of spread with such consistent velocities?
The bullet: Barnes 150 ttsx
The powder: 62.5 H4350
The issue: Three shots at 100 yards gives a 5-6" spread vertically but they are all dead in line. Firing through a chronograph at 3124, 3125, 3145 fps (21 fps extreme spread). Action on the rifle is glass bedded and everything is tight.
The question: What would cause that kind of spread with such consistent velocities?