International is the second in the Clays gunpowder series of powders, bringing this technology to the 20-gauge reloader. It also works in 12-gauge, 2-3/4-inch light, medium and heavy 1-1/8-oz. loads, and high-velocity 1-oz.
As with Clays, International is clean-burning and flawless functioning.
Check your reloading manual or go to a powder manufactures website for load data.