Bullet:
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Hollow Point Boat Tail (HPBT) bullets have higher ballistic coefficient because of small meplat, long ogival and boat tail design. These features enable very accurate long range shooting, with flat trajectory and reduced wind drift.
Full Metal Jacket Boat Tail (FMJ BT) bullets are specially shaped bullets to reduce air resistance. The rear cone in combination with aerodynamically shaped ogival part provides high ballistic coefficient, slight velocity drop on trajectory, greater down-range energy and less wind drift as well.