Todd - do as maple butcher and Roger suggest. Soak, scrape, soak, scrape. Try a good worm on a rod- once you get it started, soaking in cold water should work. It may take a few days, but will salvage the situation. You cold try something like Hoppe's9PLUS but I'd just use water- with a touch of real soap - not detergent. I wouldn't want detergent chemicals sitting there for long periods of time.