Comp shooting sessions use anything between 24 and occasionally ~80 rounds.
My current regimen depends on the number of rounds fired and what has gone on before. If I've fired over 40 rounds, it'll get the full treatment, namely a wet patch of Eliminator, wiped out then another left wet. It then gets a good 20 strokes of an Autosol-soaked tight patch, focusing more on the first 150mm where the carbon is always worse. Copper is the least of my worries. The bore gets wiped out and I have another look with the borescope. If it needs it, the Autosol is dragged out again and the process repeated til I see what I'm after. I don't obsess about minor smears of carbon but solid stripes aren't ignored.
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