The .256 Winchester Magnum is a centerfire rifle cartridge that was introduced in 1960 by Winchester. It is essentially a .357 Magnum case necked down to accommodate a .25 caliber bullet. Originally designed for use in the Winchester Model 70 bolt-action rifle and the Ruger Hawkeye single-shot pistol, the cartridge saw moderate use for varmint hunting and various shooting sports.
The .256 Winchester Magnum typically fires a 60-75 grain bullet at around 2,300-2,800 feet per second, depending on the ammunition load. Its high velocity and flat trajectory make it suitable for small game and varmint hunting at medium ranges. Despite these advantages, the cartridge did not achieve widespread popularity and eventually production of firearms chambered for it ceased.
The .256 Winchester Magnum is prized by collectors and enthusiasts who appreciate its unique performance characteristics. Reloading enthusiasts also find it a versatile and interesting cartridge due to its potential for custom loads.