.256 Win. Mag. Load Data & Reloading Guide

The .256 Winchester Magnum, introduced in 1963, is a centerfire rifle cartridge developed by Winchester Repeating Arms Company. Originally designed for small to medium game hunting, it was one of the first cartridges to use a .257-inch bullet in a magnum case, significantly enhancing its performance compared to other cartridges of similar dimensions. It was initially produced for the Model 88 Winchester lever-action rifle, showcasing its versatility and robust engineering characteristic of Winchester's innovations during the mid-20th century.

Technically, the .256 Win. Mag. features an overall length of approximately 2.525 inches, with a case length of 1.840 inches. This cartridge typically utilizes bullet weights ranging from 60 to 100 grains, allowing for a range of applications and load versatility. The high-velocity potential of the .256 Win. Mag. can exceed 3,000 feet per second with lighter bullets, offering flat trajectory and effective terminal ballistics.

In terms of practical applications, the .256 Win. Mag. is favored for hunting small to medium game such as deer, antelope, and varmint due to its excellent accuracy and relatively low recoil. Its performance also makes it suitable for competitive shooting, where precision and flat trajectories are crucial. For reloaders, the .256 Win. Mag. offers advantages in custom load development, whether seeking to optimize velocity or reduce recoil for specific tasks. Its popularity among handloaders stems from the availability of various bullet choices and the ability to tailor loads for various shooting scenarios, enhancing the experience and effectiveness of the cartridge.