It is unconclusive for me so far. I have been testing at 50,100,200yds.
It makes no diffference at 50yds.
I give a slight edge at 100yds to 55.
Still trying to determine at 200yds.
I have not tried any fancy Match Ammo yet only 55/62 all FMJ.
I have used (no particular order):
[li]Black Hills red box 55gn[/li]
[li]Sellor & Bellot 55gn[/li]
[li]Barsnal 62gn Soft Point[/li]
[li]Remington MC 55gn[/li]
[li]Pri Parvizan 55gn (have but not shot yet)[/li]
[li]M855 green tip 62gn[/li]
I kind of like the Fiocchi the best so far and the S&B shoots well but leaves alot of brass residue on the breech, and the SP ammo once in a while will deform the lad tip on loading and Fail to Load. Other than than they all seem pretty much the same.