I don't own a lathe but always wanted to. Back when I was seriously looking I read this article. It was originally written in 1997 but it may still be of help.
Also I purchased this book from Midway & I found it most helpful in understanding things.
Of course your best resources are the DIY BR shooters & 'smithys in here!
Please keep us posted on your progress, as I'm interested in this project too!