Originally Posted by
Peter Laidler
The fancy butt plate overhang is just someones idea of prettying up the rifle, presumably after he had butt patched the heel of the butt. It should be a half round.
The butt disc markings are definately not military and it looks to me like it's been inserted as a bit of an afterthought simply because the person sanding the butt has 'run-into' the butt disc recess instead of using a block. Clearly 7.7 is the metric .303" and quite what the 50 relates to is anyones guess.
As for the barred-out butt number mark, it's very probably an armoury number. Asa for the O above the designation. Ain't got a clue!
The butt plate screw should seat into the butt plate with just the curvature showing but that's just a bit of cosmetics really