I think that there are many different ways to break one in and some folks dont believe its necessary,
However this is the way that i do it .
I clean the barrel good before the first shot.
Clean it after every shot for the first 10 shots
Then shoot three shot groups and clean it for the next ten.
I cant tell you if it makes it shoot any better but It does make it easier to clean IMO.
Use a good copper remover for cleaning the copper or a dual purpose cleaner,
just a powder solvent will not get the copper.
also if you have a bore guide and a good one piece rod they are a plus.
good luck with you new rifle.