I've been running a 20" 300 WSM with 7" suppressor. I shoot 166 Hammer Hunters at 2950 FPS or 178 ELDx's at 2920 fps. I've really liked this combo. Been using it for the last two years. Plenty of power for elk out to 500 yds or more (which is about as far as I shoot at animals.) Pretty handy in terms of weight and length. Fairly reasonable recoil, light enough that I can spot my hits if I'm in a good shooting position. I find it to be a really nice "do all" suppressed hunting rifle.