I am not a believer in this "shoot one and clean" break-in procedure either. But I do believe in a thorough cleaning after a shooting session, including the removal of all fouling.

For an interesting add-on to the discussion, and a contrary opinion, take a look at the discussion of this topic on the Kreiger Barrels website:

http://www.kriegerbarrels.com/Break_In__Cleaning-c1246-wp2558.htm

Essentially, they say the throat is where break-in is required.

But my questions is, "If you shoot 20 rounds the first session, then clean all fouling from the bore and throad, haven't you done the break-in?"

It's rare for me to have a new barrel anyway.

Curl