Well lets see, a Colt pistol could make a guys face cave in at point blank range.
 I don't think the sniper rifles they used back then would decapitate them but it would blow the back of their head out.
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 More negative waves Moriartii! Have a litte faith baby, have a little faith.
  
More negative waves Moriartii! Have a litte faith baby, have a little faith.