IMR 4064 Smokeless Powder imr 4064 is easily the most versatile propellant during the IMR line, utilized for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Tremendous Limited Magnum, 308 Winchester, 338 Winchester Magnum, and also the listing goes on and on. Flexibility with uniformity and accuracy. https://gastoni801egg4.blogs100.com/profile