First Strike Rounds FSR .68 Caliber PaintballsExperience Sniper Accuracy with First Strike FSR . 68 Caliber Rounds First Strike round or FSR, make the perfect projectile for those extra difficult shots. First Strike Rounds have set the bar for consistent and accuracy in paintball. Utilizing both aerodynamic design and fin stabilization technology, First Strike Rounds maintain their velocity longer than a regular paintball. The result is 50% greater range and precision accuracy. Want to be