LOL Ringman, no WBY freebore, my rifles a standard cut 375 AI, you could start at 80grs of RL-17 and work up carefully with a chrono.
memtb, dang right, I've since backed all my loads down to an even 3K with the 270gr TSX, more accuracy and less recoil, and heck, when you get to that level it simply doesn't matter as far as killing goes.
