If nothing works out for you, you could just go outside of city limits away from roads, buildings, and houses and shoot somewhere. Just research the codes on discharging firearms for whichever county you will be shooting in and find out how far away you have to be from certain things. Try to find a dirt embankment to shoot into, or shoot from an elevation, so you don't kill anyone off in the distance. Also, if it's someone else' land you have to get their permission first.