as kev said, a good rub with an oily rag mmmmm
the bluing on aa guns doesnt seem as good or deep if thats the right word as some others, mine is oiled after every outing.
i use shot gun oil sprayed on a rag or parkerhale gun oil again on a rag, take the action out of the stock if it gets wet as the water sits in there and can mess things up big time.
very good guns these, i have the s410