Barrel break in with Wolf?

[LR1955]

Joe Carlos's approach to barrel break-in with the AR15 seems to really be focused on the gas port more than anything.

I think there is a lot to that, and his decades of experience with chasing accuracy in AR15s for the AMU are extremely difficult to argue with.

He has a very detailed procedure he uses for his uppers that involves shooting a round, applying copper solvent to the barrel, placing the upper in an inverted position so the solvent soaks into the top inside of the rifling, especially at the gas port, then cleaning after an 8hr soak, and inspecting with a bore scope. He will spend days doing that until the gas port is in a very clean condition with no burrs.

He got me thinking about break-in in a totally different light after listening to what he had to say, based on decades of daily experience with accurizing the AR15.

LR52:

Whats wrong with bore scoping to see if there is a bur at the gas port, then lapping it out if one exists?

LR55