Quote Originally Posted by oldcurmudgeon View Post
I believe that I may know who created this, if it is a.22 then careful inspection of the barrel may show it to be sleeved with Parker-Hale parker rifling insert. If this is the case, then it will have originated from the one and only Les Westley. Before legislation became too restrictive, he was converting old rook rifles with said insert to CO2.
So a very good chance it's one of his, though the one I saw was marked with his name.
HTH
Yes a lot were sleeved with .22 rimfire barrels, I had one myself, it weighed a ton but supremely accurate. Had a moderator fitted and all you heard was the clink of the hammer on firing. This guy has done a beautiful engineering job with the conversion.

Baz