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Old 01-10-2014, 01:46 PM   #31
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Brushes are normal phosphor bronze. The cleaning rod is a high-quality Dewy rod, black-nylon-coated single-piece steel. Since the pesky black problem was observed with a new barrel and brush, I'm beginning to wonder if the black is coming from the nylon on the rod after years of use, but why just after brushing and not with a patch, I don't know. I do use a bore guide. I too would love to have the patches analyzed. I'm starting to accept though that the black is not coming from a dirty barrel.
I have no doubt the bronze is normal. Look at the braided metal shaft the bronze bristles are attached to. Is it aluminum. Over.
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Old 01-10-2014, 09:57 PM   #32
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It is a Hoppe's (or Outers?) phosphor bronze brush. The shaft is silver-colored but I believe it is not aluminum and is probably steel because it is strongly attracted to a magnet (and not just the base part).

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Old 01-10-2014, 10:47 PM   #33
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My experience is this is more likely to happen with a dark

bore. I would worry about the crown on the muzzle with

excessive cleaning.

Try this; use a jag with a rag instead of the brush with the solvent.

Then take a worn brush, cut a patch to cover the brush, and use it

to swab out the solvent. Don't forget to swab out with oil, when

you are done.

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Old 01-10-2014, 11:28 PM   #34
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It is a Hoppe's (or Outers?) phosphor bronze brush. The shaft is silver-colored but I believe it is not aluminum and is probably steel because it is strongly attracted to a magnet (and not just the base part).
Then I simply don't know. A mirror shiny bore and sharp rifling is where I stop cleaning and call it a day, like most owners. I would guess that there is always a layer of oxidation, which, once removed, quickly builds up again. Good luck with your research.
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Old 01-11-2014, 05:41 AM   #35
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Thanks Mercator. Thanks for sticking with the topic. It's still a bit unresolved but more observation may eventually resolve the problem. But one thing I will change is not getting so upset with black patches when I think the bore is clean. Thanks for your help.

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