what i like to do is to get a barrel, and some paintballs. i put a paintball in the barrel and whip it at someone. you can actually get the balls to go pretty far, really fast. i've gotten quite a few guys out, mostly when they aren't expecting it at all.
I have GOT to try that sometime!
Maybe the next time my gun breaks down on the field I'll try that instead of my usual "sidearm"...(picking balls off the ground & throwing them). Heck, it cant be any worse!