Shoot yeah LD, you'll be there, one thing about these big bores and shooting big animals this side of 300 yards, a two inch group at 100 will easily cover what needs done, one other thing i'll bet, even if you hit a moose or big brown bear at 2300 with a 400gr Hammer both will hit the ground, fast!
Boy would that be cool. Might have to find a McMillan for my 458
Mickey that mother, pillar and steel bed everything, action tang, full length barrel channel, bottom metal, she'll shoot Big B, i have a standard COL 458WM on a 98 mauser that way, 3X heavy #4 reticle leupold in leupold short lever qd bases and rings, 500gr partitions at only 2160, but damn, that should do.
