IMR 4064 Smokeless Powder imr 4064 is among the most adaptable propellant in the IMR line, useful for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Quick Magnum, 308 Winchester, 338 Winchester Magnum, and also the record goes on and on. Versatility with uniformity and precision. https://emilyr901ghi6.blogrelation.com/profile