.445 Super Mag. Load Data & Reloading Guide

The .445 Super Mag is a high-performance handgun cartridge that was developed in the late 1970s and early 1980s by Dan Wesson Arms in collaboration with Elgin Gates. It was designed to enhance the capabilities of the .44 Magnum, offering greater velocity and energy, and was intended primarily for handgun silhouette competition. The cartridge builds upon the longstanding popularity of the .44 Magnum, extending the case length by approximately 0.3 inches to increase powder capacity while maintaining the same diameter and bullet size.

From a technical standpoint, the .445 Super Mag cartridge features a rimmed, straight-walled case that measures approximately 1.610 inches in length, compared to the .44 Magnum's 1.285 inches. This additional length permits greater powder volume, facilitating higher pressures and velocities. Typical bullet diameters are 0.429 inches, consistent with the .44 family of cartridges, and common bullet weights range from 200 to 300 grains. The .445 Super Mag can achieve muzzle velocities in excess of 1600 feet per second with heavier bullets, resulting in significant energy and extended effective range.

The ballistic performance of the .445 Super Mag makes it suitable for big game hunting as well as competitive shooting sports like metallic silhouette competitions. Its ability to generate high velocity and impact energy provides effective knockdown power for medium to large game, making it a favorite among hunters who prefer handgun hunting. In competitions, its flat trajectory aids in precision shooting at extended ranges, further highlighting its versatility and power.

For reloaders, the .445 Super Mag presents several advantages. The increased case length allows for the use of a wide range of propellants and bullet types, enabling precise tuning of loads for specific applications. Additionally, the cartridge's compatibility with commonly available .44 caliber bullets simplifies the sourcing of projectiles. The reloader's flexibility in developing tailored loads can enhance performance in various contexts, from hunting to precision target shooting, maximizing the potential of this powerful and versatile cartridge.