The Firing Line Forums - View Single Post - .303 Britrish ammo

brianj · June 9, 2005, 04:56 PM

Bob
The 'Q' in the headstamp of British .303 of that age shows it is definitely aProof Cartridge. There were four marks, often with Roman numerals but the 3 inthe headstamp almost certainly means it is a mark 3. My information, from a French book, is that the bullet is 212 grains and the charge is 41 grains of cordite. It is a nitroglycerine based propellant in long thin tubes. It is quite hard on barrels but stores well and is not too temperature sensitive.
Quite what you do with nearly 4,000 rounds of it, I am not sure!
brianj

June 9, 2005, 04:56 PM	#2
brianj Junior Member Join Date: June 9, 2005 Posts: 1	.303 British Ammo-Possibly Proof Bob The 'Q' in the headstamp of British .303 of that age shows it is definitely aProof Cartridge. There were four marks, often with Roman numerals but the 3 inthe headstamp almost certainly means it is a mark 3. My information, from a French book, is that the bullet is 212 grains and the charge is 41 grains of cordite. It is a nitroglycerine based propellant in long thin tubes. It is quite hard on barrels but stores well and is not too temperature sensitive. Quite what you do with nearly 4,000 rounds of it, I am not sure! brianj