Rocket, you cautioned me some time ago about the possible lack of re-casing of the blued frame on the Ithaca NID I mentioned in an earlier post to this thread. I've worried about that ever since, but I have been shooting ducks using hard kicking Bismuth shells for a couple of years and don't notice any damage.

Here's a picture of the frame. You noticed the gap at the knuckle on this gun. It hasn't gotten any worse as far as I can tell.



Bobby suggested trying a file on the frame to determine hardness. I did that but don't have enough experience filing on guns to tell whether its re-cased or not...Geo