I would never intentionally try to shoot through the shoulder blade of a deer but sometimes bad shots happen accidently. How much kinetic energy does it take to consistently penetrate the shoulder blade of a deer? I get between 73 and 80 ft-lbs depending on which arrow I shoot out of my Hoyt Razortec at 70lbs and 30" draw. I plan on using a slick trick 1 1/8" Magnum 100 grain broadhead this year. I'm going to Illinois on a once in a lifetime hunt this fall and I want every advantage I can get for those big Pike county suckers.....