When I was a kid in the glorious fifties we shot thousands of shells at skeet. All were loaded with wax fiber wads and no shot collars (pre WWMark 5's). When we bothered to clean we used a patch with Hoppe's 9, followed by a dry patch and then some oil on a patch. Mostly we just tried to get back to the range asap. Those barrels are still as good as new. The guns are relics but the bores are beautiful.
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