Lest you think from the preceding post that I go blithely squirting oil into my guns, I assure you that the opposite is true. Shooters of my generation were raised with a horror of excess oil. There was good reason for it: In our day, oil was comprised either of rotted dinosaurs or boiled whales. Whale oil was the good stuff. Watchmakers, and others who dealt with delicate machinery, would use nothing else. Best of all was sperm oil, which came from sperm whale heads and was actually a liquid wax. It did not freeze at low temperatures, prevented frostbite if rubbed on the feet, and resisted evaporation. The sperm whales were not happy about having their heads sawed open, but no one asked them.