Thanks for the feedback gentlemen. The barrels were checked and browned years ago by Keith Kearcher. I have not shot it since then and wanted to see if the barrels had any choke. That is when I noticed the small bores, and the reason for my question.
Cherrybomb,
You are correct. Poor assumption on wall thickness.
Shotgunjones,
My proof will be to fire a box of Gamebore split between the two barrels on the far side of a pine tree. I agree, no added stress required.
Will post pictures of the results.
Thanks again
Ithaca1
Last edited by ithaca1; 01/29/15 07:39 AM.