damn, don' t be afraid to practice out further. You can go to 30 easily and have enough oomph. If you can shoot 3" groups at 20 yards, then I' d do what Arthur suggested and shoot at game up to 25. But definetely practice out further. If you are afraid of penetration, then I would strongly suggest taking a look at some 2 bladed fixed broadheads, like magnus. Good luck to you.