The Barnes Bullets 30166 is designed with utmost precision for high performance even at extreme distances. This is made possible through Barnes\' stringent manufacturing and quality control practices that result in remarkably low standard deviations and marginal variations.The Precision Match rounds are filled with a match grade OTM (Open Tip Match) BT projectile. This is characterised by its long boat tail and high ballistic coefficient (B.C.) that enhances its flight stability and accuracy. An added feature is the QR code located on the back of each box. By scanning this, you\'ll gain access to Doppler radar generated drop tables that are specifically tailored to each load, further enhancing your precision shooting.