Seen a demo once involving a long bow, .45 ACP and a breast plate from a Spanish armor suit. 45 ACP dented and bounced off. Arrow sliced through it and kept going. Seen a demo with a 30-06 150 grain soft point and a bag of #6 chilled shot (I think it was a 25# bag), bullet fragged and did not penetrate...Arrow went through the chilled shot bag and out the other side with no problem. Has to do with resistance and small diameter of arrow head and not power....Of course on soft target up close and personable----give me the .45 everytime...