IMR 4064 Smokeless Powder imr 4064 is the most versatile propellant in the IMR line, useful 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. Flexibility with uniformity and precision. This smokeless https://fredi912jqp8.wikidirective.com/user