First things first... did you check and make sure it's not loaded? may sound like a dumb question but it wouldn't be the first rifle somebody inherited that was loaded!, drop the ram rod down the barrel and see how much sticks out when it hits the bottom, mark it with your thumb and pull it out and lay it on the barrel, thumb against the business end and see where the other end of the rod is in relation to the breech plug , if it's empty it should be within 1 inch or a little less from where the barrel meets the breech, if it's more, you have something in there. once empty simply take the barrel from the stock and give it a good cleaning, oil it, remove the lock, clean and oil all moving parts, same with the trigger, reassemble and test fire it with a light load of about 20 grains and see if it hits a target a short distance away, say 10 yards, if that works your on the road to success, as always in muzzleloading there's more than 1 way to skin this cat, be safe, Beav