once again weevil see the link above and interpret the following "The offence is complete if a member of the public is injured, endangered or even just alarmed by the incident."

where i live on a large council estate (not a chav though) i and the local police would interpret this as if a next door neighbour complains they will act upon it.

as for ignoring the 50ft rule, why not ignore the lot and have 40ft/lb gun too off ticket.