In the revised Edition of Bolt action rifles by Frank de Hass he states '' The one-piece receiver is a very accurate die forging or an investment casting ,I cannot be sure which ''.
According to Gary Przibilla in Guns Australia mag ,1968 Company catalogue ''The receiver is made of high grade material ,being a sturdy ,integral forging '' ,regarding the bolt ,''it is a one piece forging''.
Gun Digest 1969 ,ZKK Series '' The forged receiver is entirely of new design ''