IMR 4064 Smokeless Powder imr 4064 is among the most functional propellant from the IMR line, employed for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Tremendous Shorter Magnum, 308 Winchester, 338 Winchester Magnum, as well as checklist goes on and on. Flexibility with uniformity and accuracy. https://johnk802ffg4.wikinarration.com/user