Manual of Cartridge Conversions Back In Print!
New volume (4th edition) is paperback only... can't seem to find this edition in hardback. I have the previous edition (3rd edition) in hardback which is no longer in print (and sells for crazy prices).
The Handloader's Manual of Cartridge Conversions (Revised Edition): John J. Donnelly, Judy Donnelly: 9781616082383: Amazon.com: Books
The best part - it is only $18.95!!!
This is *THE* manual if you are interested in wildcatting, converting "donor" cartridges for antique loads, and general cartridge design. The new edition is well worth every penny.