Winchester 296

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!