Back to the topic at hand... one thing I forgot to mention and that I've seen consistently with MT's, they definitely "settle down" with upwards of 100 rounds through the barrel. Undoubtedly, a guy can speed up the process with a "barrel break-in" but that sort of fussyism doesn't interest me. I just run rounds and clean every so often. Once I get north of 2-300 rounds I rarely clean inside 50+ rounds... or at least I let the barrel tell me what to do.

Just a thunk...

“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery