So would it be true to say the action sn would have been stamped into whichever type of stock the assembler reached for, laminate, walnut, maple, etc, then stamped with the action sn? Were the stocks made and marked in blocks?Nope your rifle is in the "V" block as for stocks yes, it really depends on just what was next inline to be fitted. When your rifle was made and fitted, just depending on what was chosen next by the worker (or in the early too late war slave laborers) the stock could have been walnut on rifle 2963 V.