I have found that a particular barrel can make a big difference in the cleaning process. For example, the Krieger Palmas that I use on my 6.5x47 PRS go to as many as 200 "hot" rounds down the bore between cleanings. They clean up with a few patches of BoreTech Eliminator. At the other end of the spectrum my factory Savage/Remington barrels while they are superb shooters, after 50-100 rounds they take a whole lot more time, brushing, and elbow grease.
