Have a chat with Matt Crouch at East Devon. Maybe it could be combined with the annual Barn Door shoot.
So long as it wasn't at a venue too far away (pensioner on a partly fixed partly index linked income!!) I'll even have a go with my 20+ year old HW80 in 22 calibre, now how's that for dopey?
Point of interest, have a section for classic guns, must be 20 years old. I've got a very nice Diana 38 that needs an airing, 1980 built and the blueing is stunning.