I don't know why, but when I get a good batch of milsurp ammo my 1922 hex receiver Mosin-Nagant will outshoot any of my other milsurps, including a couple of Lee-Enfields, Mausers, a Garand and a K31.
Then again, when it's a bad batch its TERRIBLE! Never tried it with handloads or commercial... Maybe I should!