Like has been stated there are a number of varying opinions on barrel break in. I personally don't suscribe to any particular method. I clean the bore thoroughly and oil, when I hit the range the first thing I do is to run a wet patch and allow to sit about 1 minute to remove excess oil and follow up with 2-3 dry patches. Then I'll fire a three shot group, clean the bore and judge from there. Usually at that point I fire 2 shots adjust the scope and clean every 6-8 rds until the scope is sighted in. After that then I'll clean every ten rds during load development. When I get home from the range session then I do a thorough cleaning. By the time I have a decent load developed the bore is broken in.