.475 Linebaugh Load Data & Reloading Guide

The .475 Linebaugh caliber emerged in the late 1980s, developed by custom gunsmith John Linebaugh. It represents an expansion of the classic .45 Colt, designed primarily for revolvers by lengthening the case and significantly increasing the diameter. This caliber was created to offer higher stopping power, making it a formidable choice for big-game hunting enthusiasts seeking an American-made alternative to African safari calibers.

Technical characteristics of the .475 Linebaugh include a case length of approximately 1.4 inches and a rim diameter typical of large revolver cartridges. The standard bullet diameter is .475 inches, capable of accommodating a wide range of bullet weights. Ballistic performance is robust, with the ability to propel a 400-grain bullet at velocities exceeding 1300 feet per second. This level of performance delivers energy suitable for taking down large and dangerous game reliably.

Reloaders find particular advantages with the .475 Linebaugh due to its manageable case pressures, allowing for safe experimentation within acceptable limits. Common bullet weights range from 325 to 440 grains, offering versatility depending on the shooter’s objectives. Hunting applications are most prevalent, although it can be adapted for silhouette shooting or other sport uses where its power and long-range capabilities may be desired.

For reloading purposes, the .475 Linebaugh offers relatively straightforward case work given its straight-walled design. Dies are readily available, and the caliber benefits from a variety of available components, including cast and jacketed bullets. The caliber’s ability to offer impressive stopping power and precision, combined with its reloadability, makes it a preferred choice among reloaders who seek both challenge and performance in their custom ammunition.