Did the gunsmith reheat treat the action? I was told, I could be wrong, that when the upper end English gunmakers "open up" a standard mauser action to use a cartridge which has a greater length than 3.3" they reheat treat the action. (Per General Hatcher the 98 mauser was made of a carbon steel similar to SAE 1035, heat treatable) Which is why that can use the standard mauser action on a long low pressure cartridge like the 416 Rigby. Is this true? Does any one know anything about this?