The Hatsan AT44-10 TACT Airgun is able to shoot high-density lead pellets with a muzzle velocity of up to 1,070 feet per second. Available in three calibers – .177cal (1070fps), .22cal (970fps), and .25cal (870fps) – this tactical airgun is able to reach such powerful velocities by utilizing a Pre-Charged Pneumatic (PCP) system. The PCP system incorporates a detachable 180cc air cylinder for 200 bar fill (3000 PSI) to shoot at incredible velocities with nearly zero recoil.

While the muzzle velocities of the AT44-10 TACT may be perceived as lower than other airgun manufacturers advertise, accuracy and energy upon impact are vastly superior. This is because Hatsan airguns are rated using heavier lead pellets while other manufacturers rate their airguns using lightweight alloy aluminum pellets. In fact, the use of alloy aluminum pellets in Hatsan airguns is not recommended, as their power can partially disintegrate lightweight pellets, greatly reducing their accuracy and effectiveness.

See more at http://www.hatsanusa.com/products-page/pcp-powered/at44-10-tact/.