Patrick, I haven't visited in a few days and saw your thread. I thought I would add.... I have a LeFever with the exact measurements as your receiver. 1 1/8" x 2 1/4". Mine is an F grade , 12xxx serial, rod cocker, pivot lever, 12 gauge with 30"barrels. Weighs 7 lbs. 4oz. Would this be considered a "light twelve"? Hope this helps you.
all the best, Robert.
Thank you Robert,
Your sample and what Bill provided earlier is what I needed to confirm this is a 12 gauge. If this was a 16 gauge I was going to try to find some barrels. I have way to many 12 gauge projects already so this one will find a new home.
thanks again
Patrick