Out of stock
SKU: SB300BLKSUBA
UPC: 754908512461
Sellier & Bellot 300 Blackout 200 Grain Full Metal Jacket Subsonic ammunition delivers reliable, subsonic performance in a 20-round box format optimized for suppressed rifle systems. The 200-grain projectile is engineered to function below the sound barrier at 1,060 feet per second, making this load ideal for operators running sound-suppressed platforms where supersonic crack must be eliminated without sacrificing terminal performance.
The .300 Blackout subsonic load design ensures cycling reliability in AR-pattern rifles while maintaining stable flight characteristics through suppressed barrels. The full metal jacket construction provides consistent chamber feeding and reduces fouling compared to expanding ammunition. At 1,060 fps, this 200-grain load trades the supersonic velocity ceiling for subsonic ballistics that work in tandem with modern suppressors—critical for tactical operations where signature reduction is paramount. Sellier & Bellot ammunition is field-tested across law enforcement and military platforms, delivering the performance consistency operators depend on in suppressed rifle applications.
This 300 Blackout subsonic ammunition suits shooters running suppressed short-barreled rifles for home defense, tactical training, or confined-environment operations where blast signature and hearing protection matter. The 20-round box format supports practical training sessions and duty use without requiring bulk case purchases. Serious subsonic shooters favor this loading for its combination of powder charge precision and projectile stability—both essential when working below the sound barrier where velocity margins are tight.
The 300 Blackout cartridge has become the standard subsonic rifle round for suppressed AR platforms, offering users a short-action compatible option that doesn't require specialized magazines or feeding systems. Subsonic 300 Blackout ammunition is significantly more affordable to produce than comparable subsonic rifle loads, making repeated training and qualification cycles practical for budget-conscious operators and agencies.
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