Reply To: POI shift horizontally with different pellets???
I have always assumed that this is due to slightly different harmonics in the barrel with different pellets. As in the pellet would exit the barrel at a slightly different point in the barrel “whip”, which could be in any direction, causing the downrange POI to be out. Reading your post makes me wonder whether a heavy bull barrel would not change as much with different pellets? What gun are you shooting and is it a thin barrel?