The optimal jacket wall thickness effectively manages expansion and maintains weight. The open pocket beneath the polymer tip facilitates the immediate expansion of the lead core upon impact. The tuned ogive ensures industry-leading ballistic coefficients, while the boat tail design enhances flight stability and accuracy. Introducing the Sierra GameChanger hunting bullet - a perfect fusion of Sierra renowned match accuracy and lethal penetration. Sierra has re-engineered their iconic MatchKing bullet into a hollow point design for rapid expansion, complemented by a transparent green tip to ensure ballistic consistency. Internally, the GameChanger features a distinctive construction, utilizing a specialized lead alloy encased in a robust copper jacket, providing exceptional penetration and expansion across various ranges. It truly changes the game in any hunting scenario. Please note, this is not loaded ammunition. This bullet requires a barrel twist rate of 1 - 8 or faster.