How do you guys feel about this procedure? Found it online and was thinking about using it on a new Kimber Montana I just got. Thanks Break-in procedure for factory barrels: Clean. Work the first 4-5 inches of barrel from breech with a small amount of JB bore paste on a patch, back and forth 10-15 times. Repeat steps 1 and 2 two more times. Clean. Fire one shot, clean. (repeat 5 times for SS barrel, 10-15 times for Chrome-Moly barrels) Fire three shots, clean. (repeat 3 times for Chrome barrel) Fire five shots, clean. Now repeat that whole process until copper fouling is minimized – usually about 3 times on a centerfire rifle, 5 times on a rimfire rifle.