11.43 x 58.6R : Eley ; .577/.450 Solid Martini-Henry
bullet : attachment : press fit (paper patch frayed)
Reference: : 1934 : Catalogue of Sporting Ammunition : ICI Ltd : : p 92. Description: a commercial cartridge. The .577/.450 lived on as a useful medium bore rifle for sporting or guard use long after it became militarily obsolete. Sporting rifles were made for the cartridge, and surplus military arms were sold off in the Third World (although not in India or the Sudan, where they were banned). The Martini Henry was particularly popular in the Middle East, and demand continued for the cartridges well into the 20th century.