Last year I inherited a Double Nine after my father in law passed away. The model number is W 101, and the barrel is marked .22 cal. I was shooting it today, and some of the rounds had to be pushed in to the cylinder harder than I'd expect. Looking in to the cylinder, it occurred to me that it was much longer than .22LR, and that I needed to clean out each cylinder, much like shooting .38 Spl in a .357. Wondering if anyone with experience with these knows if this is actually designed to handle .22WMR? Were .22 mag versions specifically marked that way? Any help would be appreciated.