dmurphy317
I will try to get in touch with a Browning and Weatherby and see if they will or have the equipment to the testing... There are no proof houses in the Americas the closest one would be London, then Spain, then Honk Kong.
But each of the major manufactures have someone do the testing if a person could find one of those places, then you could probably get a test done... Cost? and do they need more than one barrel? all of that is unknown...