.500 S&W Mag. Load Data & Reloading Guide

The .500 S&W Magnum cartridge was introduced in 2003 by Smith & Wesson and Cor-Bon as a powerful revolver round designed specifically for the new Smith & Wesson Model 500. This caliber quickly became known as one of the most powerful production handgun cartridges, intended to provide both hunters and shooting enthusiasts with a significant increase in ballistic performance over other large-bore revolver cartridges available at the time.

Technically, the .500 S&W Magnum uses a straight-walled, rimmed case that measures approximately 1.625 inches in length. The caliber typically uses large magnum pistol primers and achieves high pressures, warranting caution during reloading. Standard rifling for barrels chambered in this caliber is a 1-in-18.5-inch twist rate, supporting the stability of a wide range of bullet weights. Bullet diameters for this cartridge are generally in the .500-inch range, accommodating various bullet types from jacketed hollow points to hard-cast lead.

In terms of ballistic performance, the .500 S&W Magnum can propel a wide array of bullet weights, ranging from 275 grains to over 700 grains. The most common bullet weights for hunters and performance shooters usually fall within 300 to 500 grains, offering substantial energy transfer and deep penetration. Velocities can exceed 2,000 feet per second with the lighter projectiles, enabling effective long-range accuracy and terminal performance suitable for large game hunting.

For reloaders, the .500 S&W Magnum presents opportunities to tailor ammunition to specific needs, whether for hunting or target shooting. Its large case capacity allows for experimentation with different powders and bullet types to fine-tune performance. Careful load development can optimize performance and manage the substantial recoil inherent in shooting this powerful cartridge. The ability to customize loads in this manner ensures that handloaders can exploit the wide potential of the .500 S&W Magnum for various applications, making it highly versatile for those willing to invest time in precise reloading practices.