This is about the best read I've seen on the subject of barrel break-in in a while:

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/ubb/showflat/Number/1282969/page/1#Post1282969

BTW, on that forum Mule Deer is John Barsness, a highly respected writer for Handloader and Rifle magazines.

As for me, I don't bother with any kind of tedious break-inany more. BTDT. But it's your rifle so have at it if you want.