Have you had the barrel out of the stock? If not there might be an H.E.L. On one of the barrel flats. Occasionally a barrel got reindexed at the factory, or got shortened at the breech after severe use (which your gun obviously had). In any event , I can tell you the stock appears to be genuine curly maple rather than the artificial striped stocks Leman is famous for. The fancy wood, without a cap box in the butt stock seems a little unlikely as well. Traditional Lemans usually can be spotted across a room by their shorter than usual nose cap, and rear entry pipe finial, which your gun has neither. But that being said it may have been a custom order.
Hungry Horse