Alliant Reloder 33 Rifle Powder - 1 lb Multi-Caliber Magnum

Alliant Reloder 33 delivers exceptional velocity and consistent performance in magnum rifle cartridges, engineered specifically for large-capacity cases requiring slow-burning propellants. This temperature-stable powder maintains accuracy across extreme weather conditions while providing the energy density needed for long-range precision shooting.

What Makes This Different

Reloder 33 features an advanced double-base formulation that burns progressively slower than standard rifle powders, maximizing case capacity utilization in magnum cartridges. The spherical grain structure meters consistently through powder measures, reducing charge weight variations by up to 40% compared to extruded alternatives. Temperature stability remains within ±1% velocity deviation across a 100°F temperature range, ensuring consistent point of impact regardless of environmental conditions.

Key Features

• Temperature-stable formulation maintains velocity consistency from -40°F to +125°F
• Spherical grain structure provides uniform metering and reduced charge variations
• Optimized burn rate for .300 Winchester Magnum, .338 Lapua, and similar large-capacity cases
• Double-base chemistry delivers higher energy density than single-base alternatives
• Copper fouling reducer additives extend barrel life and maintain accuracy
• Lot-to-lot consistency within 15 fps standard deviation
• Compatible with standard large rifle primers and magnum primers

Field testing demonstrates Reloder 33's ability to achieve maximum velocities in magnum cartridges while maintaining sub-MOA accuracy potential. Long-range competitors report consistent performance at distances exceeding 1,000 yards, with minimal velocity loss in cold weather conditions. The powder's progressive burn characteristics work effectively in barrels from 24 to 30 inches, making it suitable for both hunting rifles and precision competition platforms.

Technical Specs

• Net weight: 1 pound (454 grams)
• Grain shape: Spherical
• Burn rate: Slow (similar to H1000/Retumbo class)
• Base type: Double-base nitrocellulose
• Recommended cartridges: .300 Win Mag, .338 Lapua, .300 RUM, .30 Nosler
• Storage temperature range: -40°F to +150°F
• Manufactured in the United States
• Shelf life: 10+ years when stored properly

Reloder 33 represents the current standard for magnum rifle powder technology, combining the metering advantages of spherical propellants with the temperature stability demanded by precision shooters. Limited production runs make consistent availability challenging, making current stock valuable for serious handloaders building magnum cartridge loads.