I think the actual though is that you need 200 feet of your own land in all direction to fire a paitnball gun. But i fire half a hopper or so off every day and my neighbours dont mind. I know Xenos' neighbours dont mind about him doing it either.
I'd check with your neighbours first, if it's not a problem for them, it should be ok.
Asking for trouble, particularly in our neck of the woods
All it takes is one complaint and you're knackered.
Plus you'll get blamed for every nugget with a catapult, blowpipe or brass eagle plastic cat killer within 3 miles.
O.J
I believe you are 14 (If i'm not right forgive me)
SO before you do shoot it in your back garden CHECK the age restrictions first
I'm 13 and i'd love to but i think theres summat 'bout :
'children under a certain age can only fire the gun on a insured field!!!
Im not sure though