A unique bronze barrel wall gun (doppelter Doppelhaken), Nuremberg, ca. 1515-20

cannonmn · 24th March 2012, 06:52 AM

All I can think of is that the x-ray tester made a mistake. I had the operator shoot the machine at the muzzle of the hackbut to stay well clear of the small iron pieces nearer the breech. He shot several other objects I had, all either iron or steel, and the results on all of those seemed quite reasonable. I'm wondering if he had to change a setting on the machine to get a correct reading for a nonferrous object, and didn't do so? I didn't tell him the hackbut wasn't iron like all the other things. I'll have to ask him during the coming work-week.

24th March 2012, 06:52 AM	#11
cannonmn Member Join Date: Jun 2006 Posts: 161	All I can think of is that the x-ray tester made a mistake. I had the operator shoot the machine at the muzzle of the hackbut to stay well clear of the small iron pieces nearer the breech. He shot several other objects I had, all either iron or steel, and the results on all of those seemed quite reasonable. I'm wondering if he had to change a setting on the machine to get a correct reading for a nonferrous object, and didn't do so? I didn't tell him the hackbut wasn't iron like all the other things. I'll have to ask him during the coming work-week.