I use a lee Factory Crimp on the .45acp and roll crimp the rest with the seater/crimp tool.
It is mostly in the first 2" of the barrel in both guns,a charles daly and a convertible blackhawk in .45 and blackhawk in .357. I have to scrub the living pea soup out of to get it clean. I use a bore snake first then wind up useing some bore cleaner and a brush and scrub away, sometimes nearly 45min.
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