Arms and Armour
The .577/450 Martini–Henry (Also known as 11.43×60R (61R)) 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 (with 14 parts) 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 as 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.
Gun safety.
De Havilland Mosquito.
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