It's lots of works by using and is considered the most flexible powder in the Pyrodex selection. Like all grades of Pyrodex, it burns cleaner and creates a lot less clogging than black powder. RS compares to FFg black powder according to particle size. My name is Robert Brantley and https://deanjgdzu.digitollblog.com/19721227/what-does-goex-2fg-black-powder-mean