The spears are they hunting Boar? If these dogs find larger game do they BAY(bark & hold) or do they CATCH (grab the game by the neck or leg)? In the States we use dogs that Bay & Catch, the boar are killed with a knife. Guns are seldom use here with dogs as the dog's saftey is a concern. If the hunt is for Mtn. Lion or Black bear then a gun or Bow & Arrow are used.