IMR Enduron 8133 Magnum Powder - 1lb
The slowest-burning Enduron powder, engineered for large magnum cartridges. Delivers perfect loading density, exceptional uniformity, and outstanding accuracy in 6.5-300 Weatherby, 264 Win Mag, 28 Nosler, and 300 Rem Ultra Mag.
IMR Enduron 8133: The Ultimate Magnum Propellant
IMR Enduron 8133 represents the slowest burn rate in the Enduron powder family, making it the ideal choice for shooters handloading large magnum cartridges. This is a true magnum propellant engineered to deliver the performance that serious long-range and magnum rifle shooters demand.
Key Performance Features
- Perfect Loading Density: Fills the case at maximum charges, contributing to superb uniformity and consistency shot after shot
- Exceptional Accuracy: The ideal loading density and burn characteristics produce outstanding accuracy in magnum applications
- Copper Fouling Eliminator: Reduces copper fouling in rifle barrels, extending barrel life and reducing cleaning frequency
- Temperature Insensitive: Delivers consistent velocities across a wide range of ambient temperatures
- Environmentally Friendly: Formulated with environmental responsibility in mind
Ideal Applications
IMR Enduron 8133 performs exceptionally well in:
- 6.5-300 Weatherby
- 264 Winchester Magnum
- 28 Nosler
- 300 Remington Ultra Magnum
- Other large magnum cartridges
What You Need to Know
While IMR 8133 performs comparably to Hodgdon Retumbo, charge weights are materially different—always consult current reloading manuals and start low when developing loads. Made in Canada to exacting standards, this powder delivers the consistency and performance that discriminating handloaders expect from the Enduron series.
