This is the only way your gunsmith can stay in compliance when he enters the information in his long book to remain in compliance with the regulations his license agreement requires.Īs to the action, just remember that the receiver ring is smaller (in dia) than a large ring Mauser. What matters is that the serial number is on the action in the U.S. It matters not one wit what is done in another country regarding where the serial number is placed on the rifle.