Originally Posted by
Geezer
Apart from the Theobens, the only airguns I know of in significant use by the British AF are the old, now retired, Cadet Meteor and the current cadet BSA PCP.
You can add the Anschutz 335 to that. We had about 10 of them in HQ Sqn Arms Store when I was based in Hohne. Although not "adopted" per se. I think most units would get permission to purchase air rifles locally, as the need arose. Certainly at regular army level, they would have been purchased as club guns, rather than being used for any kind of "training".
I think only the cadets actually use air rifles as "training rifles".
If it does have a Naval connection, I strongly suspect the MkIII in the original post would have been purchased by a ship or a "ship", for use in a unit shooting club.
The South of England has 2 good things, the M1 and the A1. Both will take you to Yorkshire.