IMR 4064 Smokeless Powder imr 4064 is considered the most flexible propellant inside the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Brief Magnum, 308 Winchester, 338 Winchester Magnum, and the listing goes on and on. Flexibility with uniformity and accuracy. This https://stevem012ghg5.wikipublicity.com/user