IMR 4955 Rifle Powder

Enduron® Extruded rifle powder is a top performer for cartridges such as the 270 Winchester, 25-06 Remington, 280 Remington, 300 Winchester Magnum, and many more. Positioned directly between IMR 4451 and IMR 7977 in burn speed, it delivers reliable performance across a wide range of big-game cartridges.

Like all Enduron® powders, this propellant is temperature insensitive, clean burning, helps minimize copper fouling, and is totally safe for the environment. Its addition to the Enduron® line fills an important place in the burn-rate chart, providing top loading performance for cartridges ranging from the 223 Remington to the massive 500 Nitro Express Magnum.