It's amazing you can tell from a fuzzy photo that gun should not be fired except with "trapdoor" loads, and the quality of the steel is in question!! Any yet you state you build on Baikal actions?? Rather like the pot calling the kettle black!! I don't know what the gun is either, but it appears identical in every way, even to the precise shape of the hammers, to a J P Sauer hammer gun I have which has Krupp barrels. It may not be a Sauer, and may indeed be a Belgian gun. There are many, many good quality Belgian guns around in addition to the many JABC's. I don't intend to blindly defend this guy, I don't know him from Adam, but he's apparently been doing this longer than you have. It might behoove you to tread a bit more carefully here before making such blind accusations. Just my $.02 worth.