what caliber gun do they shoot in the biathlon in the olympics
Biathlon The biathlete carries a small-bore rifle, which weighs at least 3.5 kilograms (7.7Â lb), excluding ammunition and magazines. The rifles use .22 LR ammunition and are bolt action or Fortner (straight-pull bolt) action. The rifle must weight more than 3.5 kilograms. Each rifle holds 4 magazines with 5 rounds each. Addtional rounds can be kept on the stock of the rifle for a relay race.