I just tried a 24 hr "Kroil soak" for some leading in the cylinder and forcing cone of my 625. When I ran the brass brush through, I did get some lead flecks out but it didn't "fall out" of the bore like I've heard some folks report.
So, I did my "regular" routine using a brass brush wrapped in copper Chore Boy, chucked in the battery-powered drill on low speed. Bingo, clean cylinders in 30 seconds (times six)! A few seconds of spinning in the forcing cone and clean as a whistle.
I'll stick with Chore Boy wrapped around an old brush, but may use the Kroil or another light oil to carry out the fouling as I run the brush. Either that or maybe I'll use CLP or some TSI-301 that I also use on my smallbore guns.
Lou
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NRA Certified Instructor & RSO
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