It has been around since the late 1800s that Winchester Smokeless Powders have been available. Once a customer has fired Winchester factory loaded ammunition, they will immediately recognize the high quality of propellant that they are receiving. With the Winchester family of powders, you can bring that same level of quality to your reloading bench.
Winchester AutoComp is the powder of choice for competitive pistol shooters because of its superior performance. AutoComp powder, which provides outstanding performance in the 38 Super, 9mm Luger, 40 S&W, and 45 ACP pistol cartridges, can also be used in a variety of other pistol cartridge recipes.
Other Important Information: Do not exceed the load limits specified in the reloaders’ manual.
There should never be any mixing of two powders, regardless of the type, brand, or source of the powders.Never substitute any other smokeless powder for black powder or any other substitute for black powder.
Additional Information of Importance:
Avoid exceeding the maximum loads specified in the reloaders guide.
•Never mix any two powders together, regardless of their type, brand, or source of manufacture.
Smokeless powder should never be used as a substitute for black powder or any Black Powder substitute.
WARNING: Cancer and Reproductive Harm