Thread: 303 group-bad bedding?

Most commonwealth manufacture .303 ammunition was loaded with cordite throughout the service career of the cartridge. The supply from USA was with Nitro-Cellulose propellant and Canada a mix of Cordite and Nitro-Cellulose. Cartridges have a purple colour around the primer for ball ammunition and are headstamped with letters identifying the manufacturer, numbers for the mark of cartridge, and the year of manufacture. If the cartridge was loaded with Nitro-Cellulose there would be the letter Z stamped after the manufacture code.
http://www.harringtonmuseum.org.uk/t...ice-cartridge/