IMR 4064 is a single base, medium-range burn off pace powder and is particularly The most multipurpose propellant in the IMR line, used for 223 Remington, 22-250 Remington, 220 Swift, 6mm Remington, 243 Winchester Super Brief Magnum, 308 Winchester, 338 Winchester Magnum, along with the listing goes on and on. Versatility with uniformity and accuracy.
Important imr 4064 Info:

Do not exceed the masses exhibited during the imr 4064 reloaders guide.
Never combine any two powders despite style, brand name, or supply.
By no means substitute any smokeless powder for Black imr 4064 Powder or any Black Powder substitute.