Found this on the Remington website a while back, and thought I'd share (again)
<and have to point out that it wants to direct you to a Savage website>
Barrel Break-in Procedure
From Savage Arms
http://www.savagearms.com/cs_barrel.htm
Q. What is the barrel break-in procedure?
A. Although there may be different schools of thought on barrel break-in, this is what Precision Shooting Magazine recommends:
STEP 1 (repeated 10 times)
• Fire one round
• Push wet patches soaked with a powder solvent through the bore
• Push a brush through the bore (5 times in each direction)
• Push dry patches through the bore (2 times)
• Push wet patches soaked with a copper solvent through the bore
• Push a brush through the bore (5 times in each direction)
• Push dry patches through the bore (2 times)
• Push a patch with 2 drops of oil through the bore
STEP 2 (repeated 5 times)
• Fire a 3 shot group
• Repeat the cleaning procedure from STEP 1 after each group
STEP 3 (repeat 5 times)
• Fire a 5 shot group
• Repeat the cleaning procedure from STEP 1
They recommend the use of a patch with 2 drops of oil after the cleaning so that you are not shooting with a dry bore. It is also advisable to use a powder solvent and copper solvent from the same manufacturer to be sure they are chemically compatible.
Hope this helps.
p.s. Here's the "new" URL from Savage --
Savage Arms > Firearms > Maintenance and Procedures > Barrel Break-In
<even they state that their info is from Precision Shooting Magazine>