I think 1280 was in the parish for the last L39A1 recorded by our "short haired" friend in Fultons.
Just looked at my two; A850 has a number "1" bolt head and A1025 has an "O" size.
Also A1025 shows additional stamps on the reciever which look as if they have survived a "scrubbing".
Peter,
Does Warminster have paper work attaining to the inception of the L39A1 for Inter Service Target Rifle use?