Hi everyone. I really don't know but believe me I have expended a lot of energy trying to get an answer. I can tell that if you reach out to Merkel you will either go round and round and never get a straight answer or you will be referred to that fellow in Alabama who seems to be their designated POC. And the above link to Gunsinternational is the first time I have seen a NEW Merkel double featured, so maybe things are turning around!
But getting back to the original thread. If one wants a NEW, non-British made modern double in 500 NE you are limited (IMHO) to Krieghoff and Heym. Sabatti, whatever you think of them, I believe makes this caliber and I am not sure if VC still does. That's it for the above criteria.