Barnes Suppressor Series 308 Winchester 205gr Sierra GameKing JLC Rifle Ammo - 20 Rounds - 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. Features Optimized for suppressor use; Featuring premium Sierra projectiles loaded to Barnes' exacting standards; Clean-burning propellants; Features the Sierra 205gr GameKing;