Winchester AutoComp delivers consistent metering and clean burning performance for high-volume pistol reloaders. This spherical ball powder maintains velocity consistency across temperature ranges while producing minimal residue in semi-automatic pistols.
What Makes This Different
AutoComp's spherical geometry flows through powder measures with exceptional uniformity, reducing charge weight variations that plague flake powders. The double-base formulation burns completely at lower pressures than single-base alternatives, extending brass life while maintaining target velocities. Temperature stability remains within 1 fps per degree Fahrenheit, ensuring consistent point of impact from winter matches to summer competitions.Key Features
- Spherical ball powder geometry for precise metering through progressive presses
- Clean burning double-base formulation reduces fouling buildup
- Temperature stable performance across -20°F to +125°F range
- Optimized for 9mm, .40 S&W, .45 ACP, and .38 Super cartridges
- Low flash signature for indoor range shooting
- Copper crusher tested pressure data ensures SAAMI compliance
- Consistent lot-to-lot performance with published load data
Technical Specs
- Weight: 1 pound (7,000 grains)
- Powder type: Double-base spherical ball powder
- Burn rate: Medium-fast (between Unique and Power Pistol)
- Bulk density: 0.95 g/cc
- Recommended cartridges: 9mm Luger, .40 S&W, .45 ACP, .38 Super
- Storage temperature: -40°F to +160°F
- Manufactured: USA
