Remington Premier Match 300 AAC Blackout Ammo 125 Grain Sierra MatchKing Jacketed Hollow Point

Last reviewed: 2026-04-19 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.

When your AR-15 chambered in 300 AAC Blackout ammo needs match-grade performance without switching magazines or bolts, Remington Premier Match delivers the consistency you measure in tenths of an inch. This is supersonic 300 Blackout ammunition engineered for precision work — 125-grain Sierra MatchKing jacketed hollow points pushed to 2215 feet per second from a 16-inch barrel, each bullet held to a ±0.3 grain weight tolerance that competitive shooters stake their scores on. The Sierra MatchKing hollow point design minimizes meplat diameter for a 0.338 G1 ballistic coefficient and flat trajectory to 300 yards, while Boxer-primed brass cases reload without hassle. You’re buying 200 rounds configured as 10 boxes of 20, ready to zero optics or punch tight groups on paper.

Performance at a Glance

Remington loads Premier Match to match-grade specifications — each case is checked for consistent neck tension, each powder charge metered to within fractions of a grain, and every bullet seated to the same depth. The 125-grain Sierra MatchKing exits at 2215 fps and carries 1360 foot-pounds of muzzle energy, enough velocity to stabilize in 1:7 or 1:8 twist barrels common to modern AR-15 uppers. The jacketed hollow point profile cuts wind better than flat-base bullets, and the thin jacket construction prioritizes accuracy over expansion. This is not a hunting load — it is a range and target round built to group sub-MOA when your rifle and rest are up to the task.

The Numbers

The Sierra MatchKing bullet has won more competitive matches than all other target bullets combined — not marketing copy, but the result of exacting quality control and thin-jacket uniformity. When you need 300 Blackout ammo that groups consistently across multiple magazines and range sessions, this is the load you reach for. The brass cases resize cleanly and hold primers without loosening after five or six firings, making them a sound investment for reloaders running progressive presses.

Who It’s For

You’re zeroing a new red dot on your 300 Blackout SBR and need supersonic velocity to confirm hold at 100 and 200 yards. You’re shooting local 3-gun matches where the rifle stage runs steel plates at 150 yards and speed matters less than first-round hits. You’re building a precision AR-15 upper in 300 Blackout and want to establish a baseline before handloading. This ammunition fits all three scenarios — it delivers match-grade accuracy without the subsonic compromises of 220-grain loads, and it cycles reliably in any mil-spec AR-15 lower with a carbine buffer. If you need subsonic stealth for suppressed work, look elsewhere — this is a supersonic precision round.