You would never be able to tell the difference between the two. Although MAYBE.. Graf's and Sons had a little more fouling then Goex. I started using it back when the Goex supply went dry (I am sure some of you remember that. I think a plant blew up or something). So Graf's had their brand of powder which is made by Wano of Germany. I started shooting that, and liked it so much that since it was a dollar a pound cheaper then Goex I shot that. Now I think it is the same price as Goex.