Every 2" chambered gun I have measured has had thin walls. Very thin in some cases. If it passes proof it passes proof. They all started out with thin barrels. The last three I measure had areas of .014 or less in one or both barrels. That is just over two coke cans in thickness. But sane loads, with proper pressure, should be safe. My issue with owing one was I could do everything with a 16 or 20 and even find a double which weighed the same, with thicker barrels. Size does matter.