Lube, lube, lube- LHV works beautifully - but some times, perhaps those with rougher bores don't like it much - apparently. Taylor's little .40 he inherited from dear friend Peter, has an awfullyfinely pitted bore due to flash rusting. Peter always cleaned his guns immediately after shooting, but used boiling water and always pulled the drying patch out covered with red. He didn't hunt, so never left a spit patch inhis bore longer than a couple minutes. We all do that, yet our bores don't rust. Taylor and I lapped the bore twice with a lead lapp and compound to smooth it up. It feels like it fouls more than a smooth surface bore, but still shoots well and doesn't need wiping at any time. It shoots well enougth to hit a small dog food cat at 100 meters offhand, so it's not lacking in accuracy. It also likes LHV, so not all rough bores hate it.
We're waiting with 'bated breath on the results of Shan/Valley lube as well as the Hornady solvent and perservative product. I doubt I'd ever use the tubed patch lube they sell. I've never found a grease that didn't get too stiff in cold weather and not keep fouling soft as I demand.