I currently own 3 7RMs and load for others, it's my favorite cart. I've taken piles of whitetails with that particular cart with several diff bullets. On midsized whitetails I prefer the 150 NBT and 140 NAB. Lighter pills would often not exit. I get exits on deer nearly every time with the 150NBT. Even the 140NBTs failed to exit on some deer when launched at 3200 fps.
I followed a hunch I received from another member named Doborooney or Doborowski
and have loaded up some 150 NBT's in the 7 WSM. Like them pretty well, they sure lay out the yotes DRT...