So how do you move your weight forward? First, shoot heavier broadheads. I shoot 100-grain heads out of my compound, but go with 125-grain heads in my crossbow. Plus, I use heavier brass inserts in my crossbow. My standard recipe is to use either a 100- or a 110-grain insert plus a 125-grain broadhead, and I get remarkable accuracy and penetration with my arrows all the way out to 50 yards.