Product Overview and Introduction

Maximize your heavy field shotshell performance and medium-to-magnum handgun reloading efficiency with Alliant Herco Smokeless Gun Powder. As one of the most enduring and adaptable propellants in the Alliant lineup, Herco bridges the gap between traditional shotgun powders and slow-burning magnum handgun propellants, delivering high velocity, consistent pressure profiles, and dependable downrange energy.

Whether you are crafting high-payload pheasant or waterfowl loads in 12, 16, or 20 gauge, or developing accurate, hard-hitting target and defensive rounds for popular handgun calibers like the .357 Magnum and 9mm Luger, Alliant Herco provides the robust performance required by experienced handloaders.

Versatile Burn Rate and Robust Energy

Alliant Powder engineers Herco as a specialized double-base propellant designed to excel where higher payload weights and sustained velocity are required:

• Ideal Burn Rate for Heavy Fields: Tailored specifically for heavier shotshell payload configurations, producing the deep penetration and dense patterns needed for game hunting.

• Handgun Versatility: Provides excellent velocity and clean ignition in various mid-to-large caliber pistol and revolver cartridges.

• Uniform Flake Granules: Formulated for smooth, predictable flow through volumetric powder measures, ensuring uniform charge drops and tight velocity standard deviations (SD/ES).

• Reliable Combustion: Double-base chemistry ensures consistent performance across diverse outdoor weather conditions and extended shooting sessions.

The Professional Choice for Field and Handgun Reloaders

When your reloading regimen calls for a versatile propellant that can handle both heavy-hitting field scatterguns and robust handgun loads, Herco stands out as a historic, dependable performer with decades of proven success in the field and on the range.

Key Features and Benefits

• Heavy Shotshell Specialist: Excellent choice for high-payload 12-gauge, 16-gauge, and 20-gauge hunting and field loads.

• Handgun Adaptability: Delivers strong performance in select magnum and mid-bore pistol cartridges.

• Consistent Volumetric Metering: Flows evenly through powder measures for precise benchtop loading.

• Available Container Sizes: Offered in convenient 1-pound canisters, 4-pound jugs, and bulk 8-pound containers for high-volume reloaders.

Specifications

• Product Type: Smokeless Propellant / Gun Powder

• Brand: Alliant Powder

• Product Line: Herco

• Powder Type: Double-Base, Flake Propellant

• Primary Applications: Heavy Field Shotshells (12, 16, and 20 Gauge) and Select Handgun Cartridges

• Container Options: 1 lb, 4 lb, and 8 lb Packages

• Storage Requirement: Store in a cool, dry place away from heat, sparks, and open flames