Mooncoon, you'll also run into guns built on a heavier frame than you would think, just because it was easier to make them ike that: less custom work. I have a W&C Scott & Sons 11-bore double (numbered 2 of a set, so there is another one out there somewhere) which is built on an extremely heavy frame, appears heavier than the frame on my 10. I wrote to them, many years ago, and got a reply saying that they thought they made it about 1870, but that their records went up in smoke in the Blitz. They didn't even know that they had built an 11, but the thing is in my safe right now. Paper 10 shells won't chamber in it, paper 12s are 'way too loose..... and it's marked 11 on both barrels. Nice old piece, FULLY engraved, but it needs 2 men and a boy to carry it around.
The breech on the OP's gun looks awfully massive in comparison to the rest of the gun. I was wondering if this were an 8 or something else fun.
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