One shipment of 1922 Mausers was received with bore dimensions not meeting Newton's 6.5mm specifications but was small enough be be salvaged by reboring and re-rifling. In a period circular Newton stated that the barrels were dismounted, reamed and re-rifled by "one of the best known private makers ( Adolph?) of rifle barrels." One of my rifles showed unmistakeable marks of having been removed. This costly set back came at a time when it could have hardly been afforded.