Kongsberg makes a rifle with a three lug action. The action is wery similar to a Swedish action called Varberger. There have been some legal actions involved in this matter and both sides claim that they own the right to make this action.
The action was first made in Finland under the name Lakelander and in the begining it had nine locking lugs. The production then moved to Sweden and the number of lugs was down to six. The Swedish company also made a "budget" version with three lugs, not so fancy stock etc.
Personally I don�t really like this rifle. The action have a low angle opening bolt that make lift and extraction very stiff. I probably get some heat from other Scandinavians for not liking the action (made in Swe. or Nor.). Lots of hunters and shooters like the Kongsberg or Varberger rifles. They often shoot very good. the swedish rifle company that made them delivered every rifle with a test target. Every rifle delivered should be able to shoot three shots at 100 m inside a Swedish coin about the size of a quarter....
The barrels on the Kongsberg rifles are made at the factory in Kongsberg (name of the willage). They are hammerforged and useally shoots very good. I have put on only two of these barrels in 6,5 mm and both was good shooters for the price.
Mabye there is another Scandinavian that like these rifles better than me that can provide some more info on them 
Stefan.