Product Overview and Introduction

Master extreme velocity, eliminate copper fouling, and enjoy absolute temperature stability across your favorite magnum and standard rifle calibers with IMR 4955 Smokeless Powder with Enduron Technology (8 lb). As an advanced slow-burning propellant in IMR’s revolutionary Enduron technology lineup, IMR 4955 is an extruded (stick) powder engineered with a built-in copper-fouling eliminator. This innovative additive prevents copper buildup in your barrel, drastically reducing cleaning time and preserving match-grade accuracy over long shooting strings.

Whether you are handloading high-volume long-range hunting ammunition for the .270 Winchester and .30-06 Springfield, crafting flat-shooting rounds for the 7mm Remington Magnum, or developing precision loads for heavy-hitting short magnums, purchasing an 8-pound jug delivers the lot consistency, economic value, and modern eco-friendly performance required by dedicated handloaders.

Revolutionary Enduron Technology and Bulk Economy

Built using advanced chemical engineering, IMR 4955 offers distinct advantages for high-volume precision handloaders while providing the cost efficiency of bulk packaging:

• Copper-Fouling Eraser: Integrated additive significantly reduces copper accumulation in the barrel bore, making post-range cleanups faster and maintaining tight group sizes.

• Insensitive to Temperature Extremes: Formulated to maintain consistent velocity and pressure stability regardless of whether you are shooting in freezing winter weather or scorching summer heat.

• Lot Consistency & Bulk Value: Purchasing an 8-pound jug ensures identical burning rates across massive reloading batches, saving money while eliminating the need to re-work load data between smaller containers.

• Extruded Stick Uniformity: Precision-cut grains meter smoothly through volumetric powder measures and drop tubes for consistent charge weights and ultra-low velocity standard deviations.

The Professional Choice for Bulk Magnum Rifle Reloading

When your high-volume reloading regimen demands a high-tech, barrel-friendly propellant in an economical 8-pound container that delivers zero temperature sensitivity and top-tier velocity in calibers like .270 Winchester, .30-06, and 7mm Rem Mag, IMR 4955 Smokeless Powder stands out as an elite modern solution.

Key Features and Benefits

• Enduron Benefits: Built-in copper fouling deterrent extends barrel accuracy intervals between cleanings.

• Magnum and Standard Caliber Versatility: Exceptional performance in .270 Winchester, .30-06 Springfield, 7mm Remington Magnum, .25-06 Remington, and popular magnum cartridges.

• Eco-Friendly Formulation: Non-toxic additives aligned with modern green chemistry standards without sacrificing ballistic performance.

• Available Packaging: Economical 8-pound bulk jug designed for dedicated long-range shooters and high-volume handloaders.

Specifications

• Product Type: Smokeless Powder (Extruded / Stick with Enduron Technology)

• Brand: IMR

• Powder Family: IMR 4955

• Burning Rate: Slow (comparable to H4831 / IMR 4831)

• Primary Applications: .270 Winchester, .30-06 Springfield, 7mm Rem Mag, .25-06 Rem, and Magnum Rifle Cartridges

• Packaging Size: 8 lb Bulk Jug

• Storage Requirement: Store in a cool, dry place away from heat, sparks, open flames, and direct sunlight