Even with walnut, rifle stocks have various weights. A stock cut from a much older tree will weigh more than a stock cut from a tree that is "just big enough". The US 1917 stock is so long, and contains so mich wood, that 1 pound or more variation is not that unusual. The same is generally true (to a slightly lesser degree)with the Garandicon, and even the Kar98kicon especially "hardwood' verses "laminate" stocks.