Ok i need help understanding this. When i shoot a 20 yard my arrows penetrate less then at 30 yard and at 30 yards penetrate even less then at 40! I was shooting at a bale today and at 20 yards about 4-5 inches stick out of the bale, at 30 my vanes are halfway into the bale, and a 40 my arrows are fully inside the bale about 1-2 inches!