I hunted last year for the first time with the Xbow (but also my Mathews compound) and I use Thunderheads 100's in both and they fly great. With the Xbow the longest shot was maybe 20 yds or so. I was worried because most everything I have read says at least 125 gr. heads. That said, I am totally new to Xbows and maybe I got lucky shooting the Excal Vixen.