kinda late now. break in starts from the first round.
shot and clean after each round for the first 10-20 rounds or so. then start cleaning after each 3 round goup. everyone has there own process. I use something simular to this. look at Krieger, Lilja, Pac-nor or any other barrel makers website and they all have their own process for break in. But if you have already shot 40 rounds I would just come up with a good cleaning ritual and start load work-ups. If the barrel dont shoot you can always replace it and start fresh