For a range of calibers including .22, .30, .243, .264, .338, and other calibers, Sierra MatchKing 77 gr bullets are a preferred choice. These specialty bullets, which include the Sierra 77 gr SMK bullets, are designed for extreme medium to long-range shooting. The bullets have ultra-thin jackets and are held to exacting tolerances specific to weight and diameter. The design of these bullets also includes a hollow point boat tail with a small meplat that produces unrivaled ballistic coefficient. Because these bullets are so accurate, they are used by competitive shooters around the world, including those who prefer Sierra MatchKing 77 gr bullets. The .30 caliber MatchKing was first developed in the 1950s and remains highly popular.