According to Geoff Kolbe at Border Barrels, these guys no longer make barrels. They used to be excellent by all accounts...
"...In Europe, Shultz & Larson in Denmark were the outstanding protagonists of the cut rifling method and were making 8000 barrels a year. But adherence to workshop methods more suited to the beginning of this century, rather than its end, allowed competitors with newer technology to take their markets. They closed their doors just a few years ago."