Another copper fouling question!

[Klem]

Boretech C4 - does target some copper, minimal, and really cleans out the carbon. Combine with Tipton ultra jag to eliminate any false positive indications.

Mesa,

Good to know.

If copper is not an issue then you can still use a brass brush and not care about the false positive. With Butch's you get this anyway.

A seasoned bench-rester once advised to push through with a dry brass brush first to break up the carbon coating. This supposedly makes the wet cleaning easier. You see a cloud of burnt powder dust come out the muzzle on the first stroke. I do this when I remember however not religiously.

The thing about cleaning is that everyone has a different regime and swears by it. My thoughts are to not overthink it, and not wreck barrels and zero's, or waste time and money by overcleaning.