Optimal jacket wall thickness controls expansion and retains weight – Open pocket under the polymer tip expands lead core instantly on impact – Tuned ogive for industry-leading BC – Boat tail design for stable flight and accuracy – Introducing the Sierra GameChanger hunting bullet: 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 utlilizes 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 is not loaded ammunition. – This bullet requires a barrel twist rate of 1×9 or faster. – Diameter (inches): 0.243 – Weight (grains): 90 Gr. – Sectional Density: 0.218 – Ballistic Coefficients and Velocity Ranges: .490 @ 2700 fps and above .400 between 1380 and 2700fps .320 @ 1380 fps and below – Box Count: 100 Bullets