
01-14-2013, 08:05 AM
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Beartooth Regular
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Join Date: Apr 2006
Location: Arizona, USA
Posts: 1,475
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That something's rough in that area. Perhaps it's pitted or rusty? Or, possibly (not sure of the probability of this), it's just NEVER actually been cleaned completely to bare metal. The chamber reamer will leave roughness in the bore right at the throat/leade area, so a new, not-lapped rifle barrel will always strip copper in that area. Shooting it will smooth that area out over time, but at least initially (and maybe essentially forever?) you'll get more copper there than anywhere, assuming the barrel is well-made.
Purely for future reference, KG-12 will pull A LOT more copper out than Bore Tech's products. I've used, and still have, products from both outfits, as well as a Foul-Out II. I've used Bore Tech's C4 carbon remover, Eliminator, and Cu+2 copper remover, and KG's KG-1 carbon remover, KG-2 bore polish, KG-3 spray flush, KG-4 gun oil, and KG-12 copper remover. I use the KG products under Browning's label most of the time (except KG-12 which Browning doesn't re-label) since they're available locally at a good price. Anyway, each product/machine has its place and use, but for heavy copper fouling KG-12 is a significantly better choice than Bore Tech's offerings.
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