The .577/450 Martini–Henry is a black powder, centrefire rifle cartridge. It was the standard British service cartridge from the early 1870s that went through two changes from the original brass foil wrapped case to the drawn brass of two parts, the case and the primer. The .577/450 Martini–Henry was introduced with the Martini–Henry, in service it succeeded the .577 Snider cartridge and was used by all arms of the British armed forces as well British colonial forces throughout the British Empire until it was itself succeeded by the .303 British cartridge after an unsuccessful trial of a .402 calibre.
.577 Snider, two .577/450 Martini–Henry (coiled brass & drawn brass) and .303 British cartridges.
The Martini–Henry is a breech-loading single-shot rifle with a lever action that was used by the British Army. It first entered service in 1871, eventually replacing the Snider–Enfield, a muzzle-loader converted to the cartridge system. Martini–Henry variants were used throughout the British Empire for 47 years. It combined the dropping-block action first developed by Henry O. Peabody and improved by the Swiss designer Friedrich von Martini, combined with the polygonal rifling designed by Scotsman Alexander Henry.
A Martini–Henry in the collections of the Swedish Army Museum
(From left to right): A .577 Snider cartridge, a Zulu War–era rolled brass foil .577/450 Martini–Henry Cartridge, a later drawn brass .577/450 Martini–Henry cartridge, and a .303 British Mk VII SAA Ball cartridge
The disassembled Martini–Henry action.
A Greener GP Mark I and Mark II, note the difference in finish, safety lever, and takedown screw.
