I shot my first Primitive buck last year with a 125 grizzly single bevel. I was very happy with its performance. Arrowhead passed through shaft was sticking out opposite side about 8". This wasn't a real fast bow by any means. This arrow was a bit lighter, but I chronographed bow with 600 grain arrow at 129 fps. I did sharpen them up just a bit. I was close 9 1/2 yards on ground quartering away double lung so pretty good conditions and arrow well tuned to bow. I wouldn't be afraid to hunt Elk with them.
Good Luck and Happy Hunting don't forget to take pictures
Bjrogg