Quote Originally Posted by foxx View Post
I use to do some barrel break-in routine of cleaning after every shot for about 5-10 rounds, then ever 3 shot for about 5x then every 5 or so. It made me feel better. I thought I was doing something worth while. To confirm my theory, my groups started to tighten up after about 50-100 rounds. That's when I figured my routine was completed successfully. Then I learned it was all a waste of time. I still get better groups after about 100 rounds, but it doesn't matter how often I clean it initially. So now, for new barrels, I try to clean them after 20-25, then shoot another 20-25, just because I can't stand not to do so when it's new. After 100 rounds, I clean it and only then start to judge its shootability. From that point on I clean it when accuracy starts to fall off, and then shoot 5-7 fouling rounds before expecting consistent accuracy.
What he ^^^^ said....