Barnes SUPPRESSOR SERIES 8.6 BLK is purpose-built for suppressed, subsonic performance. Loaded with the proven 300gr Sierra MatchKing (SMK), this load combines one of the most established subsonic projectiles in 8.6 BLK with Barnes' exacting ammunition standards. Engineered for reliable feeding and cycling in gas-operated firearms across a wide range of barrel lengths and configurations, SUPPRESSOR SERIES delivers dependable function when it matters. Carefully selected components and clean-burning propellants provide consistent velocities with low shot-to-shot variation, outstanding accuracy, and clean suppressed performance. Whether running a compact suppressed platform or a full-length configuration, Barnes 8.6 BLK 300gr SMK delivers the consistency, reliability, and precision demanded from a purpose-built subsonic load.