Hi Skeettx, Roy, and Drew. Skeettx, thanks for the offer to post pic, but don't have any. Just saw the gun last night when visiting him. I remember him duck/goose hunting with it when I was a teenager, but didn't pay any atention to it back then. Don't think replacement barrel and it's not sleeved. The barrels are thin in the front 1/3 and I can see the dents on the inside of the barrels that where there when he bought it. He thought rust frosting, but he was seeing shadow from the dents. At least they didn't buff the name on barrel, engraving or locks. They look good. He thought fluid steel, but I'm now thinking laminated. The "Not for Ball" was a red flag for me, but didn't tell him, also no nitro proof. Not knowing anything about Greeners I thought around 1890, but didn't tell him. I was only off 13 years!! Need to look at it with the magnifier. At least we got it dated. Need to buy a barrel thickness gauge.
Thanks for your input Roy.
Drew, like reading your posts. I shoot twist and damascus guns with both black and smokeless reloads and my uncle shot one with factory nitro loads even thou they would have been lower pressure 10ga. He still has a few Rem. green paper 2 7/8 shells.
Always good to hear storys of people shooting old black powder proofed guns with nitro loads and the gun not knowing the difference.