Check out Jack Krieger's barrel break-in procedure at
http://www.jarheadtop.com/Kriger%20Barrels.htm . He's one of the top barrel makers in the world and his advice is probably worth listening to. It certainly can't hurt.
You might also check out Varmint Al's break-in procedure at
http://www.cctrap.com/~varmint/ashot.htm#Break . This is very different, and a lot less trouble, than anything you've probably heard before. I used this procedure to break-in a Tikka 695 (30-06) and subsequently shot a 3 shot group into a single ragged hole at 100yds using my own hand loads.
As far as Moly Coated bullets, a Moly coated bore will foul less quickly, all other things being equal. A barrel so treated will also generally maintain its accuracy longer between cleanings and is easier to clean. Ideally, you would moly coat the bore and also moly coat the bullets.
I shoot Highpower competitions and moly coated the bore on my AR-15 and moly coat all the bullets. I usually shoot at least two, and sometimes three, 88 round matches without cleaning the bore and there is no copper fouling and no apparent loss of accuracy.
[This message has been edited by pbash (edited January 04, 2000).]