The way I read his discription, is whaen the rifle was opened the cases were still fully chambered in the barrels! That is imposible!

It really doesn't make any difference what cartridge was chambered the rife can't open without moveing the cases at least 1/8th inch, or breaking the extractor. If the extractor portion of the ejector meets a case that will not move, the rifle will not open. The forarm must be removed, and the barrels removed without engageing the extractor actuator! The way he wrote the discription, he opened the rifle and the cases simply did not move, and that is imposible, without breaking the extractor/ejector, unless the forearm is removed first! It was simply a theory he had that he didn't think about before he wrote it, and doesn't have enough experience with double rifles to know better! Still he wrote a fair assesment of the worth of a double rifle, without even realizing it!