Somebody in another forum asked a good question but I don't ahve the answer. He asked what my groups look like. They are grouping horizontally. My groups look like a 1.5"-2" wide football with one inch or less long. My handloads do the same thing, just not as severe. I love the gun for its wieght and like the round due to its performance, and its beltless without the freebore of the weatherby round but it's working me to death at the range.