Norma MLE 5.56 70 Grain Copper-TSX FB Brass Rifle Ammo 20 Rounds. Precision-loaded into premium Norma Precision brass each cartridge is built for consistency reliability and minimal barrel fouling. With a muzzle velocity of 2793 fps and 1212 ft/lbs of energy (tested from a 10.5in carbine) this round retains nearly 100percent of its original weight upon impact and penetrates up to 28percent deeper than traditional lead-core bullets. Whether for duty defense or demanding field use its the high-performance choice for shooters who demand more from their ammo. Specifications for Norma MLE 5.56 70 Grain Copper-TSX FB Brass Rifle Ammunition: Manufacturer: Norma Caliber: 5.56mm Number of Rounds: 20 Bullet Type: TSX Flat Base Bullet Weight: 70 grain Cartridge Case Material: Brass Muzzle Velocity: 2793 ft/s Application: Field Self-Defense Package Contents: Norma MLE 5.56 70 Grain Copper-TSX FB Brass Rifle Ammunition What is Norma MLE 5.56 70 Grain Copper-TSX FB Brass Rifle Ammunition good for? The manufacturer suggests that it is best for self-defense field.Norma 601704041: MLE 5.56 70 Grain Copper-TSX FB Brass Rifle Ammo 20 Rounds