Until you decide if this is what you really want to spend alot of $$$ on I suggest you look at the Lee molds and pots.

http://www.leeprecision.com/cgi/catalog/browse.cgi?1283111854.2934=/html/catalog/bullmol2.html
I've shot the 340 and 405's with good success using smokeless and fillers.
But having someone else make you some is the best way to find the ones you like best.Try several and decide then buy the mold.


The guys over at

http://castboolits.gunloads.com/index.php

will have a wealth of information for you too.