IMR 4227 Smokeless Gun Powder – High-Performance Powder for Reloaders
Overview of IMR 4227 Smokeless Gun Powder
IMR 4227 Smokeless Gun Powder is a versatile, extruded powder designed for magnum pistol cartridges, small rifle loads, and reduced rifle applications. Known for its clean burn and consistent metering, it delivers reliable performance in a variety of firearms.
This powder works exceptionally well in .22 Hornet, .221 Fireball, and magnum handgun cartridges like the .357 Magnum and .44 Magnum. Its medium burn rate ensures optimal pressure and velocity, making it a favorite among precision reloaders.
Key Features & Benefits
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Clean-Burning Formula: Minimizes residue for easier firearm maintenance.
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Consistent Metering: Extruded granules ensure uniform charges.
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Versatile Applications: Suitable for magnum pistols, small rifles, and reduced rifle loads.
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Trusted Brand: Part of the IMR legacy, known for high-quality powders.
Recommended Loads for IMR 4227 Smokeless Gun Powder
IMR 4227 performs best in cartridges requiring a medium-slow burn rate. Below are some common applications:
| Cartridge | Bullet Weight (gr) | Charge Range (gr) |
|---|---|---|
| .22 Hornet | 35-45 | 10.0 – 12.5 |
| .357 Magnum | 125-180 | 14.0 – 17.0 |
| .44 Magnum | 200-300 | 19.0 – 23.0 |
Always consult reloading manuals for precise data and start with minimum charges.
Technical Specifications
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Type: Extruded Smokeless Powder
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Burn Rate: Medium-Slow
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Density: 0.0715 lb/in³
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Recommended Uses: Pistol magnums, small rifle, reduced rifle loads
Safety & Storage Guidelines
Store IMR 4227 Smokeless Gun Powder in a cool, dry place away from open flames. Keep containers sealed to prevent moisture absorption. Follow all local regulations regarding powder storage and handling.
For optimal performance, avoid mixing with other powders and always verify charges using a reliable scale.