Design
.475 caliber handgun cartridges are not a new idea. The .475 Linebaugh was introduced around 1988 as a custom, 5 shot Ruger Blackhawk single action revolver. The .475 is a wildcat cartridge made by cutting the .45-70 case to a length of 1.5 inches (38 mm), and necking it to accept a .475 bullet. The .475 Linebaugh is an immensely powerful cartridge, more powerful than the .454 Casull, the most powerful production revolver cartridge at the time. The .475 diameter bullet allowed bullet weights over 400 grains (26 g), a feat not possible with the .45 caliber cartridge cases, and the terminal ballistics of the heavy bullet, even when loaded to moderate velocities, were impressive. The .475 Linebaugh was designed for handgun hunting of large game, such as bear, where deep penetration is required for a quick, humane kill, and the heavy, cast Keith style semiwadcutter bullets out of the .475 Linebaugh penetrated very well.
Read more about this topic: .480 Ruger
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