Thank you very much for the links Jeff F.
The more I research this particular cartridge, the more afraid I get that I made too hasty of a decision. I have no problem finding the correct components and putting them together, but I'm hearing that the best fitting/most accurate .303 bullets are those cast by yourself, due to differences in bore size. I am also looking for a Headspace Field Gauge. Wonderful....
If pro is the opposite of con, is the opposite of progress, Congress?