SK Biathlon Sport .22 Long Rifle 40 grain Lead Round Nose Brass Cased Rimfire Ammo 50 Rounds. When you're competing in a sport that combines cross country skiing with target shooting the last thing you want to worry about is whether or not your 22 Long Rifle Ammo works. SK Biathlon Sport .22LR was designed for optimum ballistic performance even in windy and frigid conditions. German manufacturer SK has spent decades refining biathlon and competitive shooting ammo. The SK Biathlon Sport features a special lubricant specifically designed to perform in freezing weather but also during more temperate shooting disciplines like silhouette or benchrest shooting. On paper the 40-grain .22-caliber bullet shot out of a 26-inch barrel will have a muzzle velocity of 1106 feet-per-second and 109 foot-pounds of energy. At 100 yards velocity only drops to 968 fps and 83 ft-lbs of energy. Find SK Biathlon ammo for sale in quantities of 50 rounds per box. Get your next box today Specifications for SK Biathlon Sport .22 Long Rifle 40 grain Lead Round Nose Brass Cased Rimfire Ammunition: Manufacturer: SK Caliber: .22 Long Rifle Number of Rounds: 50 Bullet Type: Lead Round Nose (LRN) Bullet Weight: 40 grain Cartridge Case Material: Brass Muzzle Velocity: 1106 ft/s Application: Target Package Type: Box Primer Style: Rimfire Country of Origin: Germany Muzzle Energy: 109 ft-lbs Package Contents: SK Biathlon Sport .22 Long Rifle 40 grain Lead Round Nose Brass Cased Rimfire Ammunition What is SK Biathlon Sport .22 Long Rifle 40 grain Lead Round Nose Brass Cased Rimfire Ammunition good for? The manufacturer suggests that it is good for target.SK 420113: Biathlon Sport Rimfire Ammunition .22 Long Rifle Lead Round Nose 40 grain 50 Rounds/Box