Production of IMR powders dates back over 200 years when the company was originally founded by E.I DuPont. Available for use in many reloading applications, the IMR series of powder is trusted by reloaders all across the globe.

The main features of the Enduron series are copper fouling eliminator, insensitivity to temperature changes, ideal loading density, and being environmentally friendly. IMR 4955 will help you triumph, regardless of the elements or the size of your target. Falling between IMR 4451 and IMR 7977 in burn speed, it can be loaded in popular cartridges like the .25-06, .270 Winchester, .280 Remington, and .300 Winchester Mag. IMR  with Enduron: trusted when Mother Nature can’t be.

Important Information: IMR 4955

• 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

Specifications IMR 4955