Have you put a bore scope down the tube to see?
I would only think that an aftermarket barrel would/should already be lapped to remove any machining marks. Given that, shouldn't the barrel be at it's best already and with each additional shot fired be starting to wear out? Making a 'barrel break-in' a waste of barrel life......
See where this is going?
I have used the 'barrel break-in' on new barrels. Shoot one, clean, shoot two, clean....etc. After 30 rounds, I typically have a pretty good idea if the load I made is going to be a shooter or not. If not, I go and make some adjustments and try again.
I have also used 'no barrel break-in' method on new barrels. And to tell you the truth, I haven't seen a whole lot of difference! Of course this could be due to several factors. After all, how can you possibly check which method actually works on one barrel?!?!?
Good luck with your load development!
Scott
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