John Linebaugh

John Linebaugh
Born(1955-11-15)November 15, 1955
DiedMarch 19, 2023(2023-03-19) (aged 67)
NationalityAmerican
OccupationGunsmith
Known forInventing the .500 Linebaugh and the .475 Linebaugh cartridges

John Linebaugh (November 15, 1955 – March 19, 2023) was an American gunsmith from Cody, Wyoming, known for creating custom firearms. He was the inventor of the .500 Linebaugh (1986) and .475 Linebaugh (1988) cartridges. Gunwriter John Taffin, a big-bore enthusiast, describes Linebaugh as a "pioneer" in developing powerful sixguns.