Maybe one of his clients had a rifle for the caliber?

A request, Lancaster, you are a magician at finding pictures of rare and interesting firearms. Please look for pictures of Mr Langvad's own creations. I have heard praise from our Scandinavian members for his work, but have never seen pictures of any of his creations. As you've seen, he hasn't even posted any on his own website . . .

Thanks in advance, and good hunting!