i bought this 110e series j 7mm rem mag. but i cant tell if the barrel is ss or cm. the action its blued. but the barrel is silver with what looks like faded black paint. its barrel is stamp 7mm rem mag 110e series j. it has had sites on the barrel but there gone now. i tried a little spot on the barrel with some blueing but it didn't take at all. so is it ss?????? ???