SUPPRESSOR SERIES is a purpose-built, subsonic ammunition line optimized for suppressor use, featuring premium Sierra projectiles loaded to Barnes' exacting standards. Our subsonic loads utilize clean-burning propellants to keep your can clean and deliver noticeably quieter shots through suppressor-ready firearms.This load features the Sierra 205gr GameKing, designed to expand even at subsonic velocities-adding dependable terminal performance to the equation.IMPORTANT: This load is not designed to cycle semi-automatic or fully automatic rifle platforms. While it may be fired in these firearms, the action will not cycle and the bolt must be manually charged after each shot.