Firearms Chambered in .303 British

The Lee-Enfield No. 4 Mk I is a bolt-action service rifle that served as the standard rifle of the British Commonwealth forces during World War II. Renowned for its smooth bolt action and ten-round magazine capacity, it was one of the finest military bolt-action rifles ever produced.

The Lee-Metford is a British bolt-action rifle that combined James Paris Lee's box magazine and bolt system with William Metford's rifling design. It was the British Army's first repeating rifle using a small-bore (7.7mm) smokeless powder cartridge and the famous Lee bolt-action. The Lee-Metford was the predecessor to the legendary Lee-Enfield.

The Ross Rifle is a Canadian straight-pull bolt-action rifle designed by Sir Charles Ross. It was adopted by the Canadian military in 1905 and served as Canada's primary service rifle during the early years of World War I. The Ross features a distinctive straight-pull bolt action that allows very fast cycling, but it earned a controversial reputation for reliability issues in trench conditions.

The Vickers machine gun is a water-cooled, recoil-operated medium machine gun that served as the standard British machine gun for over 50 years. It was adopted by the British Army in 1912 and remained in service through World War I, World War II, and beyond. The Vickers was a development of the earlier Maxim gun, incorporating design improvements by Vickers Armstrong. It was chambered in .303 British and fed from fabric belts. The weapon was legendary for its reliability and the ability to fire continuously for hours with adequate water cooling.

The Bren Gun is a British light machine gun that served as the standard squad automatic weapon for the British Commonwealth forces from 1938 through the 1990s. It was a modified version of the Czech ZB vz. 26, adapted to fire the .303 British cartridge. The Bren was renowned for its exceptional accuracy, reliability, and distinctive top-mounted curved magazine.