Small bore is right on the money,

A SGC is easier to arrange thru a guide Phillip Beasley charged me 40 pounds plus 150 pounds a day shooting over 20000 acres. The first time certificate I could buy shotguns on it the second time I could not, so be specific if you want to take something back to the states with you.
I now have shooting on 2200 acres near Dover , Kent where I have a second home and have 5 guns stored in my cabinet there for my use.
The pigeons there are sometimes at plague proportions as are the rebbits. on the third day you can almost be shooting from the hip and hitting them as you get so much shooting practise per day
Regards
Martin