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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Stainless Steel Bore Brushes
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<blockquote data-quote="4ked Horn" data-source="post: 78611" data-attributes="member: 11"><p>Dave you are correct and you reminded me of another thing. Similar metals that contact each other will "gall" or smear. It is similar to what happens to a drill bit that slips in the drill chuck when making a hole. The drill is softer than the chuck jaws but they are both steel. The drill bit will have balled up material on it. This is why bushings are made from brass or zinc or babbit material when a steel shaft is spinning in them. If the bushings were also steel they would destroy themselves in short order even though the steel bushing is harder and tougher than the brass ones.</p><p></p><p>I imagine that this could also happen on a microscopic scale with a ss brush and a steel bore.</p></blockquote><p></p>
[QUOTE="4ked Horn, post: 78611, member: 11"] Dave you are correct and you reminded me of another thing. Similar metals that contact each other will "gall" or smear. It is similar to what happens to a drill bit that slips in the drill chuck when making a hole. The drill is softer than the chuck jaws but they are both steel. The drill bit will have balled up material on it. This is why bushings are made from brass or zinc or babbit material when a steel shaft is spinning in them. If the bushings were also steel they would destroy themselves in short order even though the steel bushing is harder and tougher than the brass ones. I imagine that this could also happen on a microscopic scale with a ss brush and a steel bore. [/QUOTE]
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