They say a Flodman O/U game gun can go 80k rounds w/o seening a gunsmith. There are others out there in used racks, but I want to purchase a few at LOW price, so there is no need for me to give you boys heads up about them.
Going back to what OWD said, I wonder how many old continental guns are in service in say Sweden. A neutral country to which MANY were actually IMPORTED long ago.