For what it’s worth, I could only get 2800 FPS from my 20” barrel and the 120 gr BTs. So I went to 100 gr BTs just to see how they’d work on deer and hogs, and I got 3000 FPS from that load. And it killed deer and hogs every bit as well as the 120’s, at least as far as I could tell. Since then I’ll switch between the loads when the mood strikes me. Not much difference in trajectories.