Don't confuse the dryness for not being protected. All guns leave the factory with a protective coating/preservative to prevent rust/etc. Also Rugers leave the factory with some type of desiccant in the plastic bag to absorb any moisture that could get into the factory box/bag. If by chance the gun were to stay unsold for a long period of time, the lube could thicken and cause trouble also. Cleaning a new gun(especially semiautos) is important in order to remove the coating/preservative. Pay attention to the action parts and especially the bore. If the bore has a heavy coating of preservative, that could lead to pressure problems when the gun is fired. I don't think that a complete disassembly would be required but use solvent and brushes(I prefer nylon bore brushes) to clean the gun action and bore. And don't use too much oil(Break-Free, etc) when lubing the action parts. Get a needle oiler bottle so that the lube can be sparingly applied to friction points. Heavy lube and cold weather aren't a good combo with semiautos and other types of actions.