These are the two I mentions in my voicemail on the show:
http://www.m1911.org/ezine/casting.htm - evolution of the wheelweight
http://www.lasc.us/Fryxell_Book_textonly2.pdf - From Ingot to Target free pdf eBook
Other resources:
http://1drv.ms/1kRmH38 - some old manuals, data mostly out of date but casting information the same
http://www.castpics.net/subsite2/ClassicWorks/default.html - NRA casting handbook
Off line the Lyman Cast Handbook 4th Ed is very good, lots of load data and casting tips.
The regular Lyman handbooks have cast data in them - current is 47th Ed?
The online ADI and Hodgdon pdf data guides have some load data with lead for cowboy guns.
Doc I would be very happy to come on at some stage and talk about cast bullet hows and wherefores. Cornmastah on this forum also does lots of casting.