Winchester AutoComp Smokeless Propellant
Winchester® AutoComp™ Smokeless Propellant Reloading Powder is a preferred gunpowder for competitive pistol shooting. AutoComp is designed to deliver perfect burning rates for cycling semi-auto pistols with compensators. Pistol ammunition loaded with Winchester AutoComp Reloading Powder helps shooters get off faster shots and reduces muzzle flash. This is a very fine ball gunpowder that meters through progressive loading machines flawlessly with low charge weights for economy reloading. Recommended for use with 38 Super, 9mm, 45 ACP, and 40 S&W.