[jaughtman]

But, until I found out that gun was made in 1910, I had shot (a few times a year) modern light 2 3/4" shells through it for about 15 years now. With that track record of no issues, can I assume it is a 2 3/4 gun, or is it a definite case of "better safe than sorry" and take it to the smith' just for peace of mind. I had even shot some buckshot out of it in the 80's....when I was assuming it was a 1930's vintage gun (ah, the days before the internet when you could not just look up any gun for date of birth at a moment's notice) as that was the story the seller gave us on it. I had to have my local smith put some screw anchors in the stock a few years back as it had shot itself loose, but other than that no issues - and I don't want to totally retire it to wall-hanging status.

J