IMR 4350 smokeless rifle powder delivers consistent performance across medium to large rifle cartridges with its proven medium burn rate formula. This versatile propellant excels in popular calibers from .270 Winchester to .300 Winchester Magnum, providing handloaders with reliable velocity and accuracy.
What Makes This Different
IMR 4350 features a single-base nitrocellulose formulation that burns cleaner than many double-base powders while maintaining temperature stability across varying conditions. The medium burn rate positions it perfectly between faster powders like IMR 4064 and slower options like IMR 4831, creating an ideal balance for medium-capacity rifle cases. This powder consistently meters through progressive presses and powder measures due to its uniform kernel size and shape.
Key Features
- Medium burn rate optimized for .270 Winchester, .30-06 Springfield, and .300 Winchester Magnum
- Single-base nitrocellulose formulation for reduced barrel fouling
- Temperature-stable performance from -40°F to 125°F
- Uniform extruded kernels for consistent powder charges
- Low flash signature reduces muzzle blast visibility
- Copper crusher tested to SAAMI specifications
- 1-pound canister with moisture-resistant seal
Handloaders achieve optimal results with IMR 4350 in hunting rifles chambered for medium to large cartridges, where consistent velocity translates to predictable bullet drop at extended ranges. Competition shooters rely on this powder's lot-to-lot consistency for match-grade ammunition in service rifle competitions. The clean-burning characteristics reduce cleaning frequency while maintaining accuracy over extended shooting sessions.
Technical Specs
- Weight: 1 pound (454 grams)
- Burn Rate: Medium (between IMR 4064 and IMR 4831)
- Powder Type: Single-base extruded
- Kernel Shape: Cylindrical extruded
- Bulk Density: 0.90 g/cc
- Manufactured in Canada
- Storage: Cool, dry location away from heat sources
IMR 4350 represents decades of propellant development focused on delivering consistent ballistic performance across temperature extremes. The single-pound canister provides enough powder for approximately 140-200 rounds depending on cartridge capacity and load data.