eightbore -

I'm heading up to Ontario in a few weeks for an annual grouse hunt and I'll be bringing the gun with me for inspection. One of the guys I hunt with up there may have measurement tools or know someone who does. He's an avid collector of vintage doubles and has an extensive knowledge of German guns. I so envy his 1903 J.P. Sauer & Sohn 16 bore SxS hammer gun. I'm praying that re-measuring provides better specs this time.