WHAT DOES HODGDON US 869 POWDER CANADA MEAN?

A real magnum spherical rifle powder, it is superb with weighty bullets in major, overbore rifle cartridges. US869 is really a dense propellant that permits the shooter to make use of plenty of powder to develop maximum velocities in cartridges such as the 7mm Remington Ultra Magnum, three hundred Remington Ultra Magnum, 30-378 Weatherby Magnum and