im shooting three shot groups of win. xp3 elites in 150gr out of my win. 270wsm im letting the barrel cool after three shots and cleaning with butch's bore shine,, the groups are all over the place sometimes to the right sometimes to the left also high and low,, i thought it might be the scope being loose ,its not, i have shot some federal fusions and they grouped very well so i dont think its anything to do with the rifle or scope,, im getting ready to go on a cow elk hunt at the end of the month so ive got to find a good shooting round that will stand up to the cow,, im not sure the federal fusions will,, i dont understand why the wins. are so eratic ,, tell me why,,,,,,,,,,