I can't tell you an ammo that shoots the best unfortunately. But, I noticed with my hand loads regardless of powder charge on my 30-06 they shot a lot better than factory Remington Core-Locs. however they all grouped in a different spot. I think that the improved patterning was a result of more consistent powder charge. if the pattern moved significantly with each .2 grains, a small difference in powder charge between rounds would cause a larger pattern...at least that's what I think. I would try to determine what the most consistent load is and run with it. good luck on your hunt! BTW the pattern moved left, right, up, and down, unlike a bolt gun that just goes up and down.