I met those guys in gun shop here in Sweden last year, they bought as you say loads of guns.
The non-professional hunter in Sweden can have up to six rifles or shotguns for hunting, and another six guns or rifles for target shooting. If you are a serious collector you can own lots of guns, even machine guns, assault rifles and sub machine guns, but you are not allowed to shoot with them. Serious top national sub machine gun shooters are allowed to own and shoot the Carl Gustav m/45. All guns must be kept in a safe.
I have 2 shotguns, 1 drilling and 4 rifles. If I was allowed more guns I would most certainly have a couple of Husqvarna hammer guns.