Thread: 3 shot groups are useless!

Originally Posted by Trout

Hi Gimp,didnt think it would take you long to dial in.Yes you will different group positions with different ammo and powder weights,glad you noticed. After 3 shots thru a barrel in 2 minuts,most barrels will get warm so will never shoot in the same spot.So the true POI in hunting terms is the 1st shot.Not after 10 shots on a cooked barrel.

What evidence is there that the first shot is in the same position each time?

What evidence is there that the apparent "opening up" after 3 shots is actually the heat causing a POI shift, vs just random sampling of the actual distribution?