.303

.303 British, or 7.7mmx56R, is a .311 inch calibre rifle and machine gun cartridge first developed in Britain in the 1880s as a blackpowder round, later adapted to use cordite and then smokeless powder propellant...

The .303 Savage cartridge is a rimmed, .30 caliber rifle cartridge developed by the Savage Arms Company in 1894 which was designed as a short action cartridge for their popular Savage Model 1899 and 99 hammerless lever action rifle. The cartridge was designed for smokeless gunpowder at a time when...

The Lee-Enfield bolt-action, magazine-fed, repeating rifle was the main firearm used by the military forces of the British Empire/Commonwealth during the first half of the 20th century. It was the British Army's standard rifle from its official adoption in 1895 until 1957...