Underwood Ammo 223 Remington ammunition featuring 62 grain solid monolithic projectiles delivers exceptional performance with 3100 FPS muzzle velocity and 1323 ft lbs muzzle energy.Underwood Ammo 223 Remington 62 Grain Solid Monolithic62 grain solid monolithic projectile for superior penetration and weight retentionNickel-plated brass casing for reliable feeding and corrosion resistance3100 FPS muzzle velocity for flat trajectory1323 ft lbs muzzle energy for maximum impact20 rounds per box 10 boxes per caseIdeal for hunting tactical applications and precision shooting where consistent performance and terminal ballistics are critical.