There is a fairly recent book, 'Black Powder Manufacturing, Testing & Optimizing' [2003] by Ian von Maltitz that covers the whole of small scale BP issues. I believe it contains some granulation charts as well. You may be able to source it through Dave Webber, but you'd have to ask him about that .. I know Dave can get some books.
I also made a request of Royal Powder Mills in England to send a chart if they would. They are an active maker of back powder with a long history and an active educational programme. It will be interesting to see how closely it matches Miller's chart if they respond & I think they shall.
I'm not a BP shooter personally, but find the subject of interest .. and also strongly agree w/JT's early admonitions.
edit: Shotgun's remark is also something that I see ref'd when reading BP articles hither & yond on the web. The firecracker crowd is into BP also and much in tune with staying between the lines .. and there are rules and regs regarding BP
Last edited by tw; 07/24/07 10:32 PM.
