Winchester Powder AutoComp Smokeless Pistol Powder AC1, 1 lb

Winchester Powder AutoComp AC1 is an extremely fine-burning smokeless pistol powder formulated for competitive handgun applications. Its burn rate is well suited to race guns chambered in .38 Super, 9mm, .45 ACP, and .40 S&W, making it a versatile choice for shooters who need consistent performance across popular competition calibers. AutoComp is designed to provide the gas volume required by compensators while supporting fast, controlled shooting performance.
AutoComp helps competitive shooters achieve rapid follow-up shots with minimal muzzle flash when properly matched to the firearm, load, and compensator system. The powder’s characteristics make it particularly suitable for compensated pistols used in practical shooting disciplines, where reliable cycling, manageable muzzle behavior, and consistent shot-to-shot performance are important. As with all smokeless powders, use only with published load data from a reputable manufacturer and follow all firearm, component, and reloading safety instructions.
This Winchester Powder AC1 container includes 1 lb of smokeless pistol powder for qualified handloaders. Always verify the cartridge, bullet, primer, firearm, and loading data before use, and keep powder stored in its original container in a cool, dry location away from heat, sparks, open flame, and unauthorized access. AutoComp should be handled and loaded only by individuals familiar with safe reloading practices and the specific requirements of their firearm and competition setup.

Features:

• Powder Type: Smokeless pistol powder

• Application: Suitable for .38 Super, 9mm, .45 ACP, and .40 S&W competition handguns

• Performance: Provides a higher volume of gas for compensator-equipped firearms

• Muzzle Flash: Designed to support minimal muzzle flash during rapid shooting

• Net Weight: 1 lb

• Brand: Winchester Powder

• Part Number: AC1