Winchester WSF Smokeless Powder have been around since the late 1800s. Customers that have shot Winchester factory loaded ammunition know that 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.

WSF is an ideal choice to maximize velocities in 12 gauge 1-1/8 oz and 1-1/4 oz loads. Also performs well in 38 Super, 9mm Luger, 40 S&W and other fast shooting action handgun applications.

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.