The Sierra 160-gr Gamekings are plenty good. The SPBT opens faster. The HPBT will give full penetration on tougher big game.
I just replied to another poster about his TRG 995 - consider a mild load, a starting load of RL-15 or 4895 under a Speer 130-gr bullet at 2,750 to 2,800 fps for most of your deer without messing them up. The Sierra 150-gr is a great bullet and the 7mm RM has enough latitude that it can be loaded from 2,700 to 3,100 FPS, and the most accurate load found somewhere in between will be no weakling.