Thank you VERY much, Rick, for telling me your experiences with loading blackpowder in the specified cartridge cases, as well as Mr Glenz, PM (BTW, I get BP from a couple places, no trouble), and Harry (although Harry I take your admonishments with a grain of 4198. Also assure you I've always shot nothing but Black, no subs in my cellar).
Perhaps I should mention that I already know what Graeme Wright has used, in fact he even wrote a book with a whole chapter on what he loaded, and Happy Birthday to all, which I guess was the real topic of this thread after all. Big Fat smooches coming your way.
