Winchester Powder 296 Ball Powder 1 lb - .357 Mag, .44 Mag, .410 Bore

The Winchester 296 is a smokeless ball powder originally developed for Winchester factory-loaded ammunition in magnum handgun cartridges and select shotshell applications. This high-energy propellant is purpose-built for heavy .357 Magnum and .44 Magnum loads, and is also recommended by Winchester for use in .410 Bore AA shotshell recipes.

Winchester 296 features a high loading density that delivers consistent metering and reliable velocity in large handgun cases, making it a go-to choice for magnum pistol reloaders. Its ball-powder geometry helps achieve uniform charge weights shot-to-shot, while the formulation supports the pressures required to push heavy cast or jacketed bullets to full magnum velocities.

This 1 lb container is ideal for the high-volume handgun reloader who works up full-power magnum loads, or for shotshell reloaders building .410 Bore AA recipes. As with all smokeless propellants, always consult published load data from a reliable source and start at the minimum recommended charge, working up gradually while observing safe reloading practices.