[quote=@LeeRoy]
[@Innue] Except Boxer punches generally carry 1200 - 1500 psi, with Mike Tyson carrying 1800 in his pockets. 
[/quote]

Just saying that these ones were not getting that high of numbers (they weren't professionals). I'm sure that is entirely possible, I'm just stating that equating lifting strength to punches isn't necessarily accurate.