The Hodgdon H4350 Extreme Rifle Powder delivers consistent performance across temperature extremes, making it a preferred choice for precision shooters and hunters who demand reliable ballistics. This temperature-stable propellant maintains velocity consistency from arctic conditions to desert heat. The H4350 formula works exceptionally well in medium to large rifle cartridges.
What Makes This Different
The Extreme series incorporates temperature-insensitive technology that reduces velocity variation to less than 1 fps per degree Fahrenheit. Standard powders can show velocity swings of 2-3 fps per degree, creating unpredictable point of impact shifts. This powder maintains burn rate consistency across a temperature range of -40°F to +125°F. The double-base formulation provides excellent metering characteristics through progressive reloading presses.
Key Features
- Temperature-stable burn rate maintains velocity consistency across extreme conditions
- Medium burn rate suitable for .243 Winchester, .308 Winchester, .30-06 Springfield, and similar cartridges
- Excellent metering properties reduce charge weight variations during progressive loading
- Low copper fouling characteristics extend barrel cleaning intervals
- Consistent kernel size and density ensure uniform powder charges
- 1-pound container provides approximately 140-160 charges depending on cartridge
- Manufactured to SAAMI specifications for consistent lot-to-lot performance
Field testing shows H4350 excels in hunting rifles where temperature variations affect accuracy. Competitive shooters rely on its consistency for long-range precision work where small velocity changes translate to missed targets. The powder performs reliably in both bolt-action and semi-automatic rifles. Load development typically shows tight velocity spreads and excellent accuracy potential across multiple bullet weights.
Technical Specs
- Weight: 1 pound (454 grams)
- Burn rate: Medium (between IMR 4320 and IMR 4831)
- Kernel shape: Extruded stick powder
- Recommended cartridges: .243 Win, .260 Rem, 6.5 Creedmoor, .308 Win, .30-06
- Temperature stability: ±1 fps per degree Fahrenheit
- Bulk density: 0.90 g/cc
- Country of origin: Australia (manufactured by ADI)
- Storage: Store in cool, dry location away from heat sources
This powder represents proven technology for reloaders who prioritize consistency over flash. The Extreme series has established itself as the benchmark for temperature-stable propellants. Serious shooters choose H4350 when environmental conditions vary and precision cannot be compromised.