In any list of the all-time favorite American hunting cartridges, the 270 Winchester is always a strong contender. The 270 has been chambered in almost every action type by every major arms maker worldwide since its introduction in 1925. Despite its age and competition from several newer cartridges, the 270 is very much alive and is still the quintessential cartridge for mule deer, sheep and other "western" big game species. The Sierra GameChanger hunting bullet is the perfect combination of Sierra's legendary match accuracy coupled with deadly penetration. Sierra re-engineered their legendary MatchKing bullet into a hollow point design for quick expansion and fitted it with a transparent green tip for ballistic uniformity. Inside, the GameChanger features a unique construction that utilizes a special lead alloy surrounded by a tough copper jacket that delivers excellent penetration and expansion at a variety of ranges. It's a GameChanger on any hunt! This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.FeaturesOptimal jacket wall thickness controls expansion and retains weightOpen pocket under the polymer tip expands lead core instantly on impactTuned ogive for industry-leading BCBoat tail design for stable flight and accuracy