Harold Hoffman wrote a book on how to do it. Here's the link:
Link
Cold link:
http://www.scribd.com/doc/24995286/The-Modern-Rifle-Barrel-Action-Book-Publishers-1999-Hoffman
Link
Cold link:
http://www.scribd.com/doc/24995286/The-Modern-Rifle-Barrel-Action-Book-Publishers-1999-Hoffman