I had a 37yr career in steel recycling/manufacturing. The idea that you can ruin a steel barrel bore with a bronze brush is just not true. And, so long as a quality coated cleaning rod is used, there will be no damage to the bore's crown.I'm sorry. I just don't believe a steel barrel can be damaged by cleaning with a bronze brush.
I have heard it for years, never seen a single example of it, old wives tales die hard.
Much of the misinformation that starts on the internet is started from within the industry as companies try to sell people the next 'great' product.
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