Just so you know BigJ12, my arrow was 524 grains with a cut to the tip head. I was hitting with 83 ft lbs of kinetic energy. There is no reason why that should have not been a pass through ,the back half of the arrow was straight in still. It was enough for me to switch arrows. I think that anyone in that situation would have done the same that I did and made the switch. Elk are too awesome to take any chances. Yes there are alot of elk taken with all sorts of arrows. I just know what I experienced and I will do what ever it takes to minimize the chances of losing a bull. And cheap arrows were definately on my suspect list. Happy hunting