read6737, as I understand it, (Peter Laidlerwrote the book on this), H&H did no "magic on the 4 to tune it in". H&H were sent rifles which were specifically selected because they shot exceptionally good groups. Thus these rifles were correctly bedded when issued, and the bedding was "as issued" - and not changed. In fact, the fore-stock was then numbered to the rifle, so there would be no accidental change to the matching of wood to metal.