Yes I've done it but mostly it doesn't make that much sense. At 20 bucks per pound and the ability to get a good powder for what you're loading via the internet, it makes little sense to risk a good weapon for a few pennies of savings. Also with the phone # on the package just make a call if you choose to do it and the mfg can give you some valuable information that may save you at trip the the ER! I just don't need the to do it so badly as to risk it, but to each their own. I just don't to want to be one of the idiots that get caught and put on youtube, and with my luck that is where I'd be posted with a caption like "look at this idiot looses eye in kaboom!"