Looks like mine is about a 3.  I'll try working on it some more and shooting it.  My first look down the bore from the muzzle with a patch in the back of the receiver, to catch light, showed a completely dark bore.  It turned out someone had shot a 30-30 in a 30-40 and the ruptured case was still in the chamber since the extractor would not pull it out.  This dignified old rifle was a gift from an old friend and I will treat it with respect.  Generations ago someone made a carbine from an 1895 rifle with 22 in barrel, shortened forearm with schnable fore end a internal barrel band, added a pistol grip, skillfully, and a butt pad.  Thanks butlersrangers for your response.