PM me any links you have that relate to BPCR.
John Boy PMed me and said he'd be glad to have a link over to The Billy Dixon Forum Library over on The Open Range:
http://www.theopenrange.net/forum/index.php?board=32.0
Another good link from John Boy:
http://www.ssbpcrc.co.uk/Resources/Introduction%20to%20BPCR%20Loading.pdf