Don't know where anyone has ever come up with Pyrodex is more corrosive than all other muzzle-loading powders. (Brought this topic over from another thread.) I've been using Pyrodex for over 25 years and haven't ever had any problems with it, rust wise. But I do clean my guns thoroughly and within 8 hours after shooting them. I think all muzzle-loading powders have a corrosive issue if one thinks they can leave a dirty gun or a loaded one laying around for long periods of time. How many of you corrosive people bring one in from the cold and allow the barrel to sweat from condensation without bothering to clean it?