Sierra .22 Caliber 55 Grain SBT BlitzKing Rifle Bullets 1455. The nose tips of the bullets are made of a proprietary acetyl resin compound and the sharp tips improve the ballistic coefficient over the traditional flat-base Spitzer bullet design. The...
Sierra .22 Caliber 55 Grain SBT BlitzKing Rifle Bullets 1455. The nose tips of the bullets are made of a proprietary acetyl resin compound and the sharp tips improve the ballistic coefficient over the traditional flat-base Spitzer bullet design. The...