I have seen an elk taken with a full frontal shot with a bow and believe me it is as fatal if not more than the typical broadside shot. The entry whole allowed blood to exit like someone had turned on a garden hose. I have never seen a elk go down like that. With a lot of practice and the right situation it is a very fatal shot. That being said, I passed a 5x5 last late season at 8 yards because I was not comfortable with this shot.