When I lived down at the coast, I used RIG on all my guns for storage. Here in the interior with low average humidity, I clean them with water, dry, flush with WD40, then wipe down the outside steel with that patch - done - none of my guns rusted after being stored for years with no extra protection. Now, it's rare they don't all get shot at least once in a year, however still no rust, no 'extra' protection. Only the film of WD40 - since 1980, that's it.