I think 30-31 grains of IMR 4895 behind the 160 grain bullet is the way to go, DEPENDING on your twist rate. If you have a chrono the 31 grains will put it above the 2400 FPS the lunatics in the UK have decided is the minimum needed to kill deer. Funny, you couldn't shoot a red Stag in Scotland with a .500 NE, not enough muzzle velocity !! who said "the funny thing about common sense is that is not that common ".....
Best