A real magnum spherical rifle powder, it is superb with large bullets in massive, overbore rifle cartridges. US869 is usually a dense propellant that allows the shooter to make use of ample powder to produce maximum velocities in cartridges like the 7mm Remington Ultra Magnum, 300 Remington Ultra Magnum, 30-378 Weatherby Magnum and Some others.We'v