A few years back, some OU's with one barrel that had dispersion rifling were imported to the States. They were Italian, but I can't remember who made them. We had one, 20ga, in our Ruffed Grouse Society sponsor drawing. Barrels were about 24", IIRC. I also have a Verney-Carron catalog from 1999 showing that they offered them (OU only) back then. (At that time, they were no longer making sxs. Instead, the sxs offered in their catalog were being made for them elsewhere in the European Union. Two models, one of which looked very Spanish, the other German.) They're now back in the higher dollar sxs business, having acquired Demas a few years ago and basically producing those guns as a "custom shop" product. Don't know whether they currently offer any "becassier" sxs models.