just bought a Leman rifle, its looks to be a 54 cal. Its stock is tiger stripped, including the rod. It has a full stock, two triggers, all brass funiture and is in about 70% condition. The stock has a patch box and there is also a check rest. On the barrel is the intials, L.M and S.I.S the rifling is great, it is like six sided. Anybody know what I have here? Its a very long and heavy rifle. Its original.