I have wondered about the history of the 303 but have not had a successful search. My main question has been the last year of production, I have a T in 303 from 1937 which started my search. I have found when it started, how to reload it, and how good or bad people think it is but no end of production date. I thought I would ask the experts about the date and if anyone knows of any other rifle chambered for it. Thanks for any help.