Jim
My Lifters barrels are pretty rough inside too, however the wipe routine and a soap and water clean up with a good brushing is all it needs. I don't know that Teflon is bad with BP but don't know it's ok either.
Way I brush my rough barrels is wrap of 0000 Steel Wool around a bronze brush. Have a rod that's fitted for a power screwdriver. Rotate under power for a few seconds, cleans up nice.
William
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