Nosler 51275 Match Grade 300 Blackout 220gr HPBT Subsonic - 20 Rounds per Box

Nosler Match Grade 300 Blackout – 220gr Custom Competition HPBT – 51275

The Nosler Match Grade 300 Blackout (51275) represents the pinnacle of subsonic precision for the 300 AAC Blackout platform. In 2026, this loading remains a top choice for competitive shooters and tactical professionals who demand “no-compromise” accuracy from their suppressed rifles. At the heart of this round is the 220-grain Custom Competition Hollow Point Boat Tail (HPBT) bullet. By combining a small meplat for reduced drag with a pronounced boat-tail design, Nosler has created a projectile with exceptional flight characteristics and aerodynamic efficiency, even at the lower velocities required to remain subsonic.

Every round is assembled using Nosler Premium Brass and meticulously weighed powder charges to ensure shot-to-shot consistency that rivals handloaded ammunition. Unlike standard bulk subsonic loads, the Match Grade series undergoes a rigorous visual inspection and factory polishing process before boxing. With a nominal muzzle velocity of 1,020 fps, this ammunition is engineered to be hearing-safe when suppressed while providing the stable, predictable trajectories needed for long-range subsonic “lobs.” For the shooter who treats their suppressed 300 BLK like a precision instrument, the Nosler 51275 is the industry benchmark for factory-loaded match performance.

Includes: (1) Box of 20 Rounds – Nosler Match Grade 300 Blackout 220gr Custom Competition HPBT Subsonic Ammunition.

Key Features

Custom Competition® Bullets: Features a lead-alloy core and a match-grade jacket designed for unmatched stability and balance in flight.
Subsonic Precision: Tuned to stay below the speed of sound (~1,020 fps) to eliminate the sonic crack, optimized for 1:7 and 1:8 twist barrels.
Nosler Premium Brass: High-quality headstamped brass ensures smooth feeding and superior reloadability for those who save their casings.
HPBT Design: The Hollow Point Boat Tail configuration maximizes the ballistic coefficient, reducing wind drift and vertical stringing at distance.
Hand-Inspected Quality: Each finished round is visually inspected and polished by factory technicians to ensure 100% reliability.
Meticulous Consistency: Powder charges are weighed to exact tolerances to minimize velocity spread and maintain a consistent point of impact.