If my personal experience counts for anything I can say you got enough. Last deer I shot was with a bow shooting 237fps producing 39lb/ft of KE and the arrow double lunged the deer and buried about 8" of arrow into the ground after exiting. Next one was a doe a week later with the same results. The following week was another buck, this one at a hard quartering away shot. Hit the back of the ribs and broke the off-side shoulder before bouncing back. The deer went about 90 yards.