RE: 1943 303 British
It's most likely a MKIV and if it has had it's forestock shortened and other hardware removed "sporterized" complete sets can be had on E-Bay or from Numerich Arms.The bolt /saftey requires no altering to scope with the S+K mt no drilling or tapping either preserving any collector value and they can go as high as $500 Canadian with matching serial #'s on magazine etc..............the butt stocks came in Short,Med + Long as well.The rear peep came in several variations some with a finely adjustable vernier and other with wartime utilitarian 300 + 600 yard peep also upgradable without hurting firearm.Same or a little better than the US 30-40 Krag and still owned by just about every Canuck.Consider getting into cast bullets and get neck sizing dies as they tend to be hard on brass due to generous sized chambers to ensure feeding of assorted ammo during the war......................enjoy...................H arold