they are good, i have used one, you don't really have to aim much as the bb's spread out making it easier to hit someone. the only downside is you have to count how many shots you have taken so you know when to reload. but that can be avoided if you adapt the shell to a "hi-cap" basicly you mod a shell to have a hi cap mag hanging from the bottom, then you just shoot, and not worry about how many you are shootin. theres a guide to that mod somewhere, I can't remember though, maybe one of the other guys know.
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