Description

.303 British Bullet Keyring

The .303 British or 7.7×56mmR, is a .303-inch (7.7 mm) calibre rimmed rifle cartridge.
It was first manufactured in Britain as a stop-gap black powder round put into service in December 1888 for the Lee-Metford rifle. It was the standard British and Commonwealth military cartridge for rifles and machine guns from 1889 until it was replaced by the 7.62×51mm NATO

Examples of (some) weapons the .303 cartridge was used in:

• No.3 SMLE Rifle | No.4 T Sniper Rifle
• Vickers Machine Gun
• Lewis Machine Gun
• Browning Machine Gun