Buy SIERRA 6.5(.264)140gr SBT BULLET GAMEKING 100/bx Online. This bullet is the best long-range hunting bullet in 6.5 mm caliber. Exceptional accuracy, excellent ballistic shape, and adequate weight for medium and heavy game make this a truly exceptional bullet. This bullet is at its best in country like the wide open western prairie where shots are long and conditions difficult. It has a flat trajectory, great ability to resist crosswinds and vertical winds, and high energy delivery downrange. The bullet performs very well from any 6.5 mm cartridge with medium to large powder capacity, but it is at its absolute best from magnum rifles with maximum hunting loads.