Pyrodex is classified as a propellant rather than a explosive like real BP. As far as I am concerned, that is where the "advantage" to it ends. In my experience, compared to BP, it is more corrosive, fouling is worse and harder and it is inconsistent from load to load. The advantages all go to the seller as it does not have the regulatory and handling requirements of BP. You can purchase BP online in 5 lb lots for a whole lot less than Pyrodex.