Copper Plasma follows the bullet and deposits on any rough spots in the bore. Copper is attracted to copper so the next shot deposits even more.
Using a Good Copper remover (Like Sweets 762) Clean the bore after every shot for the first 10 - 15, you should see a decrease in "Blue" on the patches with each shot, till there is almost none. Follow that with a cleaning every 5 rounds for the next 25 - 50, or until your seeing little signs of copper.... the rough spots will smooth out as the bore "Breaks In"
Some require a Bunch to get the fouling slowed to a Min, some not so much. Leaving the copper in there and depositing more layers on it will make getting it out in the future Much harder, and can / will create "tight" spots in the bore..
Don't clean it any more then you Have to, but clean it Enough so you get the full potential.
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