Speaking of product testing, my buddy, who owns an AI .338 Lapua like mine, sneaked off to the range to start firing the break-in rounds. I was almost ticked-off until he told me it took him two hours to fire three rounds.
He said the cleaning procedure was vey involved, with some evil concoction of bore cleaners, followed by dozens of patches to remove the last little trace of gunk. Then scrub the bore with a clean nylon brush. Push some more solvent through to dissolve whatever the clean brush uncovered. More dry patches until they come out spotless. Let dry for 30 minutes. Fire another round, repeat.
30 MPH winds blew a lot of stuff all over the place.
I ended out not begrudging him those three rounds. I just have the same 210-round break-in process to start, too.
That is one complex breaking in process and 210 rounds can’t be cheap either. Good Luck on breaking in your dragon-slayer.