Yes Neale I am not sure of the science of that theory but you will remember many times we have found the same thing with goats too. I remember well that day we stalked the mob at your dad's and watched them from a "very" close vantage point. A wonderful afternoon with a mate watching nature at play as all the young billy's jousted amongst themselves, but even then as on many occasions since the 9.3 did not exit with your frontal chest shot. Poor young Billy ended up with a 286 grain testicle