IMR 4064 Smokeless Powder imr 4064 is considered the most functional propellant within the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Shorter Magnum, 308 Winchester, 338 Winchester Magnum, plus the list goes on and on. Versatility with uniformity and precision. This https://clintj802eec3.wikidirective.com/user