I have an unfired 20-pr APCBC shot with very few markings. I wonder what they signify and if it's a trials or pre-production version. I haven't found any detailed drawings of the shot and I question whether the rifling is 'Probert' and if the rubber 'cup' at the base of the unit is standard.
The stampings are:-
MA O 68 37 and a small '2' just above the driving-band.
The stencils are :-
AP/CBC 20Pr MK1/2 repeated on two sides of the shot body
LOT 2 MA 95837 AB repeated on two sides of the shot body
There are also some red stencils unfortunately illegible.
Photos follow and I would welcome answers and/or comments!
The stampings are:-
MA O 68 37 and a small '2' just above the driving-band.
The stencils are :-
AP/CBC 20Pr MK1/2 repeated on two sides of the shot body
LOT 2 MA 95837 AB repeated on two sides of the shot body
There are also some red stencils unfortunately illegible.
Photos follow and I would welcome answers and/or comments!