Turns out I was wrong about this--because the Western Powders manual is out of print right now.
Eileen contacted the people at Hodgdon about buying some copies, after Hodgdon bought Western a year or so ago. They said they were planning on printing some more copies, but apparently haven't gotten around to it yet.
But we do have plenty of copies of my GUN GACK books, and some people think they contain some useful handloading information. They're also 15% off the list price through next weekend, and any purchase includes a free year's subscription to RIFLE LOONY NEWS.
