Description 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 4955 with Enduron: trusted when Mother Nature can't be. Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.