IMR 7828 SSC Smokeless Rifle Powder 1 lb - Magnum Cartridges

The IMR 7828 SSC delivers consistent performance for magnum rifle cartridges with its temperature-stable formula and optimized burn rate. This spherical powder provides excellent metering through powder measures while maintaining the ballistic performance that has made IMR 7828 a standard for long-range shooting applications.

What Makes This Different

The Super Short Cut (SSC) version features a shorter grain length compared to standard IMR 7828, improving powder flow through automated dispensing equipment by up to 40%. This spherical configuration reduces bridging in powder hoppers while maintaining identical ballistic performance to the original extruded version. Temperature stability remains consistent across a wide range of conditions, with velocity variations under 1.5 fps per degree Fahrenheit.

Key Features

• Temperature-stable formula maintains consistent velocities from -40°F to 140°F
• Spherical powder design improves metering accuracy by 15% over extruded versions
• Optimized for magnum cartridges including .300 Winchester Magnum and 7mm Remington Magnum
• Burn rate positioned between IMR 7977 and Retumbo for heavy bullet applications
• Copper-reducing additives help minimize barrel fouling during extended shooting sessions
• Packaged in moisture-resistant 1-pound containers with tamper-evident seals
• Compatible with standard reloading equipment and powder measures

Field testing demonstrates consistent accuracy with heavy-for-caliber bullets in magnum cartridges, producing standard deviations under 20 fps when properly developed. The powder performs reliably in both hunting and competitive long-range applications, maintaining velocity consistency across temperature extremes encountered in mountain hunting or precision rifle competitions. Load density typically ranges from 85-95% case fill in appropriate cartridges, providing optimal ignition characteristics.

Technical Specs

• Weight: 1 pound (454 grams) net powder weight
• Powder type: Single-base spherical smokeless powder
• Burn rate: Slow - positioned between IMR 7977 and Retumbo
• Grain shape: Spherical (Super Short Cut)
• Primary applications: Magnum rifle cartridges with heavy bullets
• Storage temperature: -40°F to 140°F maximum
• Shelf life: 10+ years when stored in original container
• Country of origin: Canada

Reloaders seeking consistent performance in magnum cartridges will find IMR 7828 SSC provides the velocity and accuracy needed for long-range applications. The improved metering characteristics reduce charge weight variations while maintaining the proven ballistic performance of the original IMR 7828 formulation.