I may be all wet here but this is my opinion.

In a hunting rifle in hunting situations, the rifle and shooter have much more to do with accurace than the cartridge. Only after the shooter and gun become ' target' grade does the accuracy of the cartridge need to be considered. The cartridge becomes the difference of 45 out of 50 ' x' rings vs 47 out of 50 ' x' rings for the inheritly accurate round.

For someone shooting at the lungs of a deer, no difference. For someone shooting paper, a difference.