The Alliant Powder HERCO delivers consistent performance across multiple applications, from light target loads to heavy magnum cartridges. This versatile powder handles both shotgun and pistol applications with exceptional metering characteristics and clean combustion properties.
What Makes This Different
HERCO stands apart from single-purpose powders through its broad application range and stable burn characteristics. The medium-fast burn rate accommodates everything from .38 Special target loads to 12-gauge magnum shells, while maintaining consistent velocities across temperature extremes. Independent testing shows velocity variations under 25 fps across a 60-degree temperature range, compared to 50+ fps variations in standard powders.
Key Features
- Medium-fast burn rate suitable for shotgun shells 12, 16, 20, and 28 gauge
- Compatible with popular pistol cartridges including .38 Special, .357 Magnum, and .45 ACP
- Excellent metering properties reduce charge weight variations to ±0.1 grains
- Low flash signature minimizes muzzle blast in low-light conditions
- Clean-burning formula reduces fouling and extends cleaning intervals
- Temperature-stable performance maintains consistency from -20°F to 125°F
- Double-base formulation provides higher energy density than single-base alternatives
Field testing demonstrates HERCO's reliability across diverse shooting scenarios. Competition shooters report consistent point-of-impact with trap and skeet loads, while law enforcement agencies document reliable function in duty ammunition. The powder's consistent burn characteristics translate to predictable ballistics, whether loading light 7/8-ounce trap loads or heavy 1-1/4 ounce waterfowl shells. Pistol applications benefit from reduced muzzle flash and clean combustion that minimizes barrel leading.
Technical Specs
- Net weight: 1 pound (454 grams)
- Burn rate: Medium-fast (between Unique and 2400)
- Grain structure: Extruded tubular
- Bulk density: 0.95 g/cc nominal
- Recommended applications: Shotgun 12-28 gauge, pistol cartridges
- Storage temperature: -40°F to 160°F
- Shelf life: 10+ years under proper storage conditions
- Country of origin: United States
HERCO's proven track record spans decades of consistent manufacturing and quality control. The 1-pound container provides enough powder for approximately 140-200 shotgun shells or 300-400 pistol cartridges, depending on charge weights and applications.