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.500 Linebaugh
The .500 Linebaugh is a .50 caliber handgun cartridge designed for use in revolvers. It is considered one of the most powerful handgun cartridges designed in terms of energy and throw weight.
==History==
The .500 Linebaugh cartridge was designed by John Linebaugh of Maryville, Missouri, in 1986. John Linebaugh had been converting .45 Colt six-shooters to five-shot revolvers, thus offering a stronger cylinder which could withstand the firing of higher-pressure .45 Colt ammunition. While this venture was successful, he continued to search for a more powerful cartridge, which resulted in the .500 Linebaugh.〔
The cartridge case itself was designed by cutting off the .348 Winchester case to , turning the rim to a diameter of and opening the case mouth to accept a .510 caliber (12.9 mm) bullet. The first revolvers converted to use the .500 Linebaugh were the Ruger Bisley and the Seville revolvers. Due to the demise of the Seville revolvers in the early 1990s, all subsequent conversions have been carried out on revolvers based on the Ruger Bisley frame.
It was when the supply of .348 Winchester cases started running out that John Linebaugh began working on the .475 Linebaugh, which could be formed from the more available .45-70 Government cases. When the Winchester Model 1871 was reintroduced in the .348 Winchester, the ability to form .500 Linebaugh cases became again feasible.〔 Today, Starline and Buffalo Bore offer .500 Linebaugh cases which are not dependent on the supply of .348 Winchester cases.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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