The IMR 4227 smokeless powder delivers consistent performance for handgun cartridges requiring fast-burning propellants. This versatile powder excels in magnum pistol loads and select rifle applications where quick, complete combustion is essential.
What Makes This Different
IMR 4227 features a single-base nitrocellulose formulation that burns faster than most rifle powders while maintaining excellent metering characteristics. The extruded grain structure provides uniform charge weights through progressive reloading presses. Temperature stability remains consistent across seasonal variations, delivering predictable velocities from 20°F to 125°F.Key Features
- Fast-burning rate ideal for .357 Magnum, .41 Magnum, and .44 Magnum cartridges
- Single-base nitrocellulose composition for clean combustion
- Extruded powder grains meter consistently through powder measures
- Temperature-stable formulation maintains velocity consistency
- Suitable for reduced loads in .30-30 Winchester and similar rifle cartridges
- 1-pound canister provides approximately 1,000-1,400 rounds depending on charge weight
- Manufactured to SAAMI specifications for safety and reliability
Technical Specs
- Weight: 1 pound (454 grams) net powder weight
- Burn rate: Fast - positioned between Bullseye and 2400 on burn rate charts
- Grain type: Extruded cylindrical
- Composition: Single-base nitrocellulose
- Density: Approximately 0.95 g/cc
- Storage temperature: -40°F to 160°F
- Shelf life: Indefinite when stored properly
- Country of origin: United States
