Mitrailleuse
A mitrailleuse (; from French "mitraille", "grapeshot") is a type of volley gun with multiple barrels of rifle calibre that can fire either multiple rounds at once or several rounds in rapid succession. The earliest true mitrailleuse was invented in 1851 by Belgian Army captain Fafschamps, 10 years before the advent of the Gatling gun. It was followed by the Belgian Montigny mitrailleuse in 1863. Then the French 25 barrel ""Canon à Balles"", better known as the Reffye "mitrailleuse", was adopted in great secrecy in 1866. It became the first rapid-firing weapon deployed as standard equipment by any army in a major conflict when it was used during the Franco-Prussian War of 1870–71. A steel block containing twenty-five 13 mm (.51 calibre) centre-fire cartridges was locked against the breech before firing. With the rotation of a crank, the 25 rounds were discharged in rapid succession. The sustainable firing rate of the Reffye mitrailleuse was 100 rounds per minute. The maximum effective range of the Reffye "mitrailleuse" was about 2000 yards; a distance which placed their batteries beyond the reach of Prussian Dreyse needle rifle fire. Reffye mitrailleuses were deployed in six gun batteries and were manned by artillery personnel. They were not infantry support weapons, but rather a form of special artillery.
British military rifles
The "Lee" comes from James Paris Lee (1831–1904), a Scottish-born Canadian-American inventor who designed an easy-to-operate turnbolt and a high-capacity box magazine to work with it. The box magazine, either Lee or Mannlicher designed, proved superior in combat to the Kropatschek-style tube magazine used by the French in their Lebel rifle, or the Krag–Jørgensen rotary magazine used in the first US bolt-action rifle (M1892). The initial Lee magazine was a straight stack, eight-round box, which was superseded by the staggered, ten-round box in later versions, in each case more than were accommodated by Mannlicher box magazine designs. The "Metford" comes from William Ellis Metford (1824–1899), an English engineer who was instrumental in perfecting the .303 calibre jacketed bullet and rifling to accommodate the smaller diameter.