The perfect pairing for training at the range and performance when it counts for personal defense. 400 rounds of 5.7x28mm in one convenient combo pack. Range Dynamics 5.7x28mm Full Metal Jacket 2 boxes of 150 rounds each. This 5.7 cartridge is a 40-grain, full metal jacket projectile bundled in a 150-round package. Hyperformance Defense 5.7x28mm tipped hollow point 2 boxes of 50 rounds each. For maximum terminal performance in a defensive cartridge, the Hyperformance tipped hollow point in 5.7x28mm stands ready. The 40-grain projectile exhibits deep penetration and reliable performance. It also features a polymer tip to ensure proper feeding and delivers the perfect balance Mfg: Fiocchi Ammunition