Was working on my loads for my 257 weatherby today and was consistently getting my third shot about and inch to the right. The rifle is a weatherby mark 5 ultra lightweight so it has like a #2 contour barrel, very thin. The load that was shooting best for me was 73.5 grains of rl 22 with 100 grain tsx loaded just off the lands. I think that the barrel was just getting too warm on the third shot and that is what was causing this but im not sure. My first two shots on all my groups were 1/2" or better but couldnt seem to make that third one stick. Any advice would be greatly appreciated. thanx guys.