When a Silencer company starts making ammunition you should probably listen hard, because it'll get quiet really quick. Gemtech has been making silencers since 1976, and for years had been recommending other companies ammunition for their .22lr silencers. So after many years, and not wanting their customers silencer performance to depend on factors out of their control. Gemtech decided to start producing their own .22lr GSS22 Silencer subsonic ammuniton so they could guarantee the best performance by combining industry leading silencers with industry leading ammunition. By combining a heavier projectile along with cleaner burning powder the Gemtech GSS22 can obtain premium sound reduction without sacrificing energy on target. the 42gr lead round nose bullet of the GSS22 is heavier than traditional .22lr which when moving at 1020FPS maintains enough energy to knock down small game or steel silhouette targets. Sold in 50rd trays in a box to help keep bullets from accuracy damaging deformation during transport and in 10 boxes per brick. The Gemtech Silencer Subsonic GSS22 will keep you quietly shooting all day.