IMR 4064 Smokeless Powder imr 4064 is considered the most multipurpose propellant from the IMR line, utilized for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Tremendous Brief Magnum, 308 Winchester, 338 Winchester Magnum, as well as checklist goes on and on. Flexibility with uniformity and accuracy. https://deborahh755pqp8.bloginder.com/profile