When that first shot counts, use ELITE COPPER HUNTING hunting cartridges. ELITE COPPER HUNTING superior hunting rounds yield consistent 1.8x diameter expansion using premium-quality powders and primers for minimum velocity variation. Perfected for AR style rifle feeding, optimized nose geomtry combined with premium shell casings deliver consistently reliable accuracy for taking down game.WARNING: California`s Proposition 65Features:Consistent 1.8x diameter expansionMinimum velocity variationLead-free projectileAR-style rifle feedingMuzzle Energy: 2801 ft-lbBallostic Coefficient (G1): 0.400Specifications:Manufacturer: SIG SAUERCartridge: .308 WinchesterNumber of Rounds: 20Bullet Type: Spitzer Boat Tail (SBT)Bullet Weight: 150 grainCartridge Case Material: BrassMuzzle Velocity: 2900 ft/sApplication: HuntingPackage Type: BoxPrimer Style: Centerfire