Precision centerfire rifle cartridges for Short Barrel Rifles. This supersonic duty round is engineered for reliable, controlled 1.8x expansion.The supersonic SBR Elite Copper Duty ammunition features an all-copper bullet and black oxide shell case to visually denote SBR capability. Velocity is 1,897 fps with muzzle energy of 959 ft-lbs out of a 6.75 inch barrel.Specs:Caliber: 300 BLKGrain Weight: 120 grQty Per Package: 20Muzzle Velocity: 1897 fpsMuzzle Energy: 959 ft-lb
