Shipping costs are based on an estimate of UPS ground or equivalent carrier within the contiguous US, excluding Alaska and Hawaii. Please see Seller's website for actual shipping costs.
Shawnee KS, IMR Legendary Powders has created a line of sophisticated extruded powders utilizing Enduron Technology. Their fine, extruded propellant features a unique copper fouling eliminator, insensitivity to temperature changes, ideal loading density and is environmentally friendly. IMR 4166 is the first in a 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. Positively, a versatile, match grade propellant.