Sierra MatchKing Rifle Bullets 6.5mm Hollow Point Boat Tail/HPBT 100 grain 500 Bullets/Box 1711C. 6.5mm HPBT Rifle Bullets. Ballistic Coefficients and Velocity Ranges is .361 at 1600 fps and above .346 between 1400 and 1600 fps .316 at 1400 fps and...