The PSG 1 Counter-Sniper Rifle is designed to fill the need for a semiautomatic precision sniping piece for use by antiterrorist units and law-enforcement special-weapons teams. The accuracy standard that all PSG-1's must meet is 50 rounds of match ammo into a 80mm (3.14") circle at 300m. It has a 25.5-inch bull barrel, .is 875-inches in diameter at the muzzle, tapers straight back into the semiauto receiver where it meets the H&K roller-locked bolt assembly. It has a muzzle velocity of 2,850 ft/sec. A Hensoldt Wetzlar telescopic sight is bolted to a mount welded atop the receiver. Numbered from 100 through 600 meters in 100-meter increments, the elevation offers fast compensation for projectile trajectory once the range has been estimated.