Winchester 296 is a handgun powder designed for large loads. The high loading density makes it an excellent choice for loading 357 Magnum, 44 Magnum, and even 410-bore shotshells. Winchester 296 is also suggested for 410-bore AA charges.
This propellant was created for Winchester plant-charged munitions 357 Magnum, 444 Magnum, and 410 Bore. This is a propellant. Its high loading density provides maximum speed. Winchester recommends 296 for 410 Bore AA loads.