...plus, you can start a topic here, or over at
www.shooters.com on their talk site, on the rifle reloading page.. there are LOTS of Whelen shooters over there that can give you good loads for any bullet weight you want to shoot... including cast bullets. There's lots of info out there.... but if you want a manual, then go with one of the ones that handloader1 mentioned... also the Lyman manual has some data, I believe. Any specific questions about bullet/powder? I've only been loading mine for about 6 months now, but maybe I can help some..
"Progress, far from consisting in change, depends on retentiveness..those who cannot remember the past are condemned to repeat it." Santayana