Hi Dugless.
you need to be very carefull where you use an air weapon these days.
is it your own land?
if not, can you get permission to shoot an air weapon on it?
is there a chance any pellets may go over onto adjoining land where you don't have permission?
and a dozen other things go through my head every time I take a shot or look at a new shoot(normally some sort of farm vermin control).
I normally shoot between 100-200 pellets a week just to keep my eye in.
plus insurance.
as I am also on a couple of airgun forums, I could ask if there is any one in your area that would lend a hand, or I supose I could nip over at some time, bit busy atm though
just a few thoughts mate...