A part of my post was in reply to your statement that you had been building double rifles for only four years. I will certainly agree that dropping a sleeve down a shotgun barrel does not make a double rifle. I am sure you did not interpret anything in my post that would indicate that it did. I am in full agreement that shotgun conversions to double rifles are a more complicated venture. I would not agree, however, that a Baikal is a "well built action." Stout, perhaps, but not well built. I still don't understand how you can just look at this photo and say you "have questions" whether the action will take the pressure load. If it should prove to be a Sauer, and checks out otherwise, I would have little doubt that it will. There are many Belgian guns that also would be suitable, IMO. At any rate, good luck with your business of converting Baikals to double rifles. I am pretty sure there are customers enough to go around for you and for the other smith mentioned above.