Long-known for the company's line of match-winning and hard-hitting hunting bullets, Sierra Bullets announced its expansion into Sierra Ammunition with the company's new GameChanger ammo in .243 Win. This new option brings the same painstaking attention-to-detail found in the company's bullets to an entire cartridge. Each round in the Sierra Ammunition GameChanger lineup is topped with the company's proven Tipped GameKing projectile, guaranteed to provide a hard-hitting, bone-crushing projectile to drop game where it stands. In addition, each round is finely calibrated to ensure that bullets end up exactly where shooters want them. Each Sierra Ammunition GameChanger round in .243 Win. includes a 90-grain projectile with an estimated muzzle velocity of 3,200 fps. Each box of .243 Win. GameChanger ammo ships with 20 rounds.