I hunt elk in Colorado with 70# bow shooting 275 fps and 377 total grains arrow weight (Easton A/C/C and Wasp 85 grain Hammer SST).That is about 63 ft*lbs ofkinetic energy.It has been a deadly set up so far with clean pass throughs every time. My dad shoots the exact same set up and the only non-pass throughs were due to the opposite shoulder.

I hope you get a monster!