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IMR® INTRODUCES THREE NEW ENDURON™ TECHNOLOGY RIFLE POWDERS

by Timothy P. Banse

IMR Legendary Powders has created a new line of sophisticated extruded powders that are loaded with more features than any other brand of powder available today. Enduron™ Technology features a built in copper fouling eliminator, insensitivity to temperature extremes, small sized grains for easy flow with an ideal loading density, and there are no ingredients considered harmful to the environment.

IMR 4166™ is the first in the series of Enduron™ propellants. It’s a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more. IMR 4166™ is a positively versatile, match grade propellant.

IMR 4451™ Another new Enduron ™powder that gives top performance in the venerable 30-06, 270 Winchester and 300 Winchester Short Magnum, to name just a few. This propellant is ideally suited for many mid-range burn speed cartridges.

IMR 7977™ is the slowest burn rate Enduron™ Technology powder. It is a true magnum cartridge propellant with outstanding performance in such cartridges as the 300 Winchester Magnum, 7mm Remington Magnum, 338 Lapua and more.

IMR Enduron™ Technology powders are available in both 1-pound and 8-pound containers. For more information and data visit imrpowder.com or check the 2015 Hodgdon® Annual Manual.



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