Shawnee KS IMR Legendary Powders has created a line of sophisticated extruded powders utilizing Enduron Technology. Their fine extruded propellant features a unique copper fouling eliminator insensitivity to temperature changes ideal loading density and is environmentally friendly.
The slowest burn rate Enduron Technology extruded powder is IMR 7977 and is a true magnum cartridge propellant. It yields outstanding performance in such cartridges as the 300 Winchester Magnum 7mm Remington Magnum 338 Lapua and a host of others. Loading density is perfect for magnums nicely filling the case at maximum charges contributing to superb uniformity and accuracy. The 7mm Remington Magnum “never had it so good”!
