Originally Posted by Corny
Try LoadData.com online! Its cost a little ever year but you have a world of loads and advice.
I have been on loaddata.com site and you have to pay $ to get the data AND it is not validated by anyone with a reputation or potential lawsuit on the line.
As others have suggested, reference several manuals and the online sites for both powder and bullet manufacturers. You might also tryout Load Books as they reprint the relevant pages from several different books for a single caliber at a modest cost. Not pretty, but packed full of information.
The best thing you can do is find a mentor who can show you the ropes, or at least work with a group of other reloaders to compare notes and ideas. It is best if these are people you know, not just posters on a web site like this.