Lancaster pistol

The Lancaster pistol is a multi-barrelled handgun produced in 2 and 4 barrel configurations in England during the mid to late 19th century. It is chambered in a variety of centrefire pistol calibres—chiefly .38 S&W, .450 Adams, .455 Webley, .476 Enfield and .577 Snider, though most productions were in .455 Webley and .476 Enfield. The designer, London gunsmith Charles William Lancaster, began his career in 1847 after the death of his father, Charles Lancaster Senior. Charles Lancaster received a patent for oval bore rifling, a form of rifling which contains two opposing twisted grooves on each side of the barrel, which he used in Lancaster pistols.