Ed's Red the benchresters bore cleaner favorite is ATF, mineral spirits and Kroil. I wouldn't use it on or near ammo but most bore cleaners are not a good idea is such quarters. The ATF provides a great lubricating oil(and the red color in the mix, DEXRON), it's all I use anymore for gneral purpose lubrication. Kroil is tremendously penetrating. I have a M12 heavy duck with the stock bolt rusted completely tight. Thought I might have to cut the head off and replace the stock bolt.. Kroil dripped into the stock bolt hole, just a few drops, and left to set for a week and the bolt just simply unscrewed.. Amazing stuff!!