The gold standard firearm used in modern Olympic biathlon competitions is a highly specialized smallbore rimfire rifle, dominated globally by a single model: the Anschütz 1827 Fortner.
Technical Specifications of a Biathlon Rifle
The International Biathlon Union (IBU) enforces strict technical regulations regarding the equipment used by athletes to ensure absolute safety and fair competition:
- Caliber: .22 Long Rifle (.22 LR)
- Action: Straight-pull bolt-action (Fortner system)
- Minimum Weight: 3.5 kilograms (7.7 pounds), excluding ammunition and magazines
- Trigger Pull Weight: Minimum of 500 grams (1.1 pounds)
- Sights: Non-magnified diopter rear sight and globe front sight (scopes are strictly prohibited)
The Fortner Action: Engineered for Speed
Every second matters when transitioning from intense cross-country skiing to precision target shooting. Traditional bolt-action rifles require four distinct movements to cycle a new round: lift the handle, pull back, push forward, and push down.
The Fortner straight-pull system, introduced by Peter Fortner in 1985, compresses this process into two linear movements.
How it works: The shooter uses their index finger to pull a linear lever straight back, which ejects the spent casing. They then use their thumb to push the rear of the bolt mechanism straight forward, chambering a fresh round. This allows athletes to cycle the rifle seamlessly in a fraction of a second without losing their cheek weld or sight alignment.
Cold Weather Precision and Design
Because biathlons take place in brutal winter conditions, these rifles are intricately engineered to withstand freezing temperatures:
- Choked Muzzles: Many biathlon rifle barrels feature a constricted or “choked” muzzle end to maintain optimal projectile stability and accuracy in sub-zero environments.
- Snow Covers: The rifle’s front sight and barrel tip feature a mechanical flip-up cover. Athletes keep this closed while skiing to prevent snow or ice from blocking the sights or entering the barrel, flicking it open only when they enter the shooting lane.
- Integrated Harnesses: The stock features built-in racks to hold up to four 5-round magazines, alongside a specialized backpack-style harness so the athlete can securely carry the weapon flat against their back while skiing.