Winchester 296 powder is one of the most definitive magnum handgun powders in the USA, and it was specifically developed for full loads in 357 and 44 Magnum, supplying high velocities at allowable pressures. You can bet the Winchester 296 powder will meet all of your magnum handgun needs, but it can also be used for 410 shotshells, especially when duplicating Winchester AA loads!
Winchester Smokeless Powders have been around since the late 1800s. Customers that have shot Winchester factory loaded ammunition know the quality of propellant they’re receiving as soon as the first shot is fired. Bring that quality home to the reloading bench with the Winchester family of powders. The Winchester 296 powder was developed for the 357 Magnum and 44 Remington Magnum cartridges. Winchester also recommends this propellant for use in 410 Bore AA loads.
Other Important Information:
•Do not exceed the loads displayed in the reloaders guide.
•Never mix any two powders regardless of type, brand, or source.
•Never substitute any smokeless powder for Black Powder or any Black Powder substitute.