Quote Originally Posted by DJS View Post
A paper or cardboard cartridge with just powder in could be ok. There are many different ways of making them shown on youtube, one example here.
If you haven't got an explosives licence for the blackpowder you can use pyrodex.
Daz
Thanks for the link, interesting stuff, but he is using balls. I'm looking for less smoke and flash, so at the moment haven't applied for black powder as I thought pyrodex would be cleaner and easier.