Tried IMR4895 / 43.6 grains with my 165 HPBT....WOW! Hole for hole!! Not the fastest load I have shot, but the accuracy is sweet. Only running about 2,600 fps but it is a tack puncher.
It think I would prefer getting that velocity up just a touch for a hunting load because I like to be prepared for long shots. As long as you aren't sacrificing too much accuracy for it you might want to up it a bit. It will certainly do the job though. Just my $.02