Remington Subsonic 300 Blackout – 220gr Open Tip Flat Base – 28430
The Remington 300 Blackout 220gr Subsonic (28430) is a staple for shooters running suppressed AR-15s or bolt-action rifles. In 2026, it remains one of the most widely available "heavy-for-caliber" options, engineered specifically to stay below the speed of sound to eliminate the "sonic crack" during fire. Featuring an Open Tip Flat Base (OTFB) projectile, this round is designed for target shooting and training where quiet operation and consistent cycling are the primary requirements. While the "Open Tip" might look like a hollow point, it is optimized for ballistic flight and accuracy rather than expansion, making it a "match-style" training round rather than a dedicated hunting or self-defense projectile.
Operating at a muzzle velocity of approximately 940–1,015 fps (depending on barrel length), the 28430 provides a soft-shooting experience with significantly reduced recoil compared to supersonic loads. Remington utilizes high-quality brass and clean-burning powders to minimize the fouling often associated with suppressed shooting. It is a "standard-pressure" subsonic load, meaning it is tuned to provide enough backpressure to reliably cycle most 300 BLK gas systems with a suppressor attached. For those looking to enjoy the "movie-quiet" potential of the 300 AAC Blackout platform at the range, this 220gr loading is the industry benchmark for factory subsonic performance.
Includes: (1) Box of 20 Rounds - Remington 300 Blackout 220gr OTFB Subsonic Ammunition.
Key Features
- Optimized for Suppressors: Specifically designed to eliminate the sonic boom, providing an incredibly quiet report when used with a silencer.
- Heavy 220-Grain Projectile: High-mass bullet retains significant energy at short-to-medium ranges while remaining reliably subsonic.
- OTFB (Open Tip Flat Base): A precision-focused bullet design that ensures consistent flight and reliable feeding in AR-15 style magazines.
- Clean-Burning Propellants: Formulated to reduce the carbon blowback and port noise common in suppressed weapon systems.
- Reliable Cycling: Developed to function in both carbine and pistol-length gas systems with standard suppressors.
- Legendary Remington Quality: Produced to strict SAAMI specifications for safety and performance consistency.
Product Specifications
- Brand: Remington Ammunition
- Caliber: .300 AAC Blackout
- Bullet Weight: 220 Grains
- Bullet Style: Open Tip Flat Base (OTFB)
- Muzzle Velocity: 940 fps (Nominal)
- Muzzle Energy: 431 ft-lbs
- Case Material: Brass
- Primer Type: Boxer
- Application: Target / Range / Suppressed Training
- MPN: 28430
- UPC: 047700479903
