IMR powder production dates back more than 200 years, when E.I. DuPont founded the company. The IMR series of powder is trusted by reloaders all over the world and is suitable for a wide range of reloading applications.
The Enduron family’s slowest burn rate is IMR Enduron 8133. Loading density is ideal for magnums, resulting in excellent uniformity.
This is a true magnum propellant that performs admirably in cartridges such as the 6.5-300 Weatherby, 264 Win Mag, 28 Nosler, and 300 Rem Ultra Mag, among others. Loading density is ideal for magnums, filling the case nicely at maximum charges and contributing to excellent uniformity and accuracy.
The Enduron series is distinguished by its copper fouling eliminator, insensitivity to temperature changes, ideal loading density, and environmental friendliness.
IMR 8133 performs similarly to Hodgdon Retumbo, but the charge weights are significantly different.
- Do not exceed the loads displayed in the reloaders guide.
- Never mix any two powders regardless of type, brand, or source.
- Never substitute any smokeless powder for Black Powder or any Black Powder substitute.