The .303 British has an enviable place in world history and cartridge development. (Steve Gash photo)
September 01, 2026
By Steve Gash
It was often said that the sun never set on the British Empire. The .303 British cartridge was a big factor that made that statement true, and it served for nearly a century, when it was replaced in 1957 by the 7.62x51 NATO.
The .303 British was developed in 1888 and adopted by the British military on February 20, 1889. It was designed for the Lee-Metford Mk I bolt-action rifle, and many projectile and propellant variations ensued.
The British developed and popularized a style of rifle called the “stalking rifle.” These were
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