Effect of hot barrel on POI

[Gil Boyd]

But Son, I think the issue raised was only in competition, as I read it. Sandbags wouldn't be allowed, so tightening down right across the board is Marksmanship Principles well honed and tested over centuries of sniper deployment.............it will always tighten a group, but one can't help someone who doesn't maintain the same point of aim, using these principles IMHO