With the exception of slugs we are not allowed to use anything weaker than 6,5x55. A lot of people have bought larger caliber rifles since wild boar grew in numbers here. 9,3x62 is considered a good and sensible weapon of choice in many peoples views. Im not agreeing with the need of such a big cartridge but a monster boar shot in the shoulder would perhaps require something more than a .243? I dunno!