Since the late 1800s, Winchester Smokeless Powders have been available. Customers who have fired Winchester factory loaded ammunition are aware of the high quality of propellant they are receiving from the first shot. With the Winchester range of powders, you can bring that quality to your reloading bench.
AUTOCOMP is a ball powder designed for competition race guns by Winchester. It’s an excellent choice for 38 Super, 9mm, 45 ACP, and 40 S&W since it has a proper burn speed to feed the compensators with more gas. Competitors can fire faster shots with less muzzle flash while using AUTOCOMP.
Other Important Details:
Do not exceed the reloader’s guide’s load limits.
Mixing two powders, regardless of type, brand, or source, is never a good idea.
Never use any non-smoking replacement.