Description
Built for quiet, accurate shooting with a suppressor or running unsuppressed, this Hornady Black load pairs the legendary A-MAX bullet with subsonic velocity designed specifically for 300 Blackout rifles. The 208-grain bullet weight sits right in the sweet spot for subsonic performance, delivering reduced noise while maintaining substantial energy at closer ranges where this cartridge excels.
Every round leaves Hornady's plant loaded with high-quality components that cycle reliably through a variety of AR-15 platforms whether you're running direct impingement, gas piston, or suppressed setups. The brass cases are reloadable if you want to stretch your investment further, and the consistency from box to box means you can actually dial in your rifle and trust it to stay there.
The A-MAX Bullet Advantage
Hornady's A-MAX design has been the go-to for match shooters and precision work for good reason. The polymer tip, swaged lead core, and boattail are engineered together to produce exceptional ballistic coefficient and stability in flight. When you're working with subsonic ammo, consistent, stable flight matters even more since bullet drop becomes a real factor even at shorter ranges. The uniform jacket thickness and concentricity keep shot-to-shot velocity variations tight.
Built for Your Blackout Platform
This load works across the full spectrum of 300 Blackout setups. Whether your barrel is 16 inches or shorter, suppressed or not, running a standard bolt, piston system, or anything in between, the ammunition is designed to feed and function smoothly. The subsonic velocity of 1020 feet per second stays well below the sound barrier, making it genuinely quiet when run through a suppressor while maintaining enough energy to be effective for target work and controlled applications.
Key Specifications
- Caliber: .300 AAC Blackout
- Bullet Weight: 208 grains
- Bullet Type: A-MAX polymer tip
- Muzzle Velocity: 1020 fps
- Muzzle Energy: 480 ft-lbs
- Ballistic Coefficient (G1): .648
- Sectional Density: .313
- Case Material: Brass, reloadable
- Rounds per Box: 20
- Velocity Classification: Subsonic
- Test Barrel Length: 16 inches
- Manufacturer: Hornady
- Model: Hornady BLACK
- Manufacturer Part Number: 80891
- UPC: 090255808919
What’s Included
- 20 rounds of loaded ammunition
Frequently Asked Questions
Will this 208gr load cycle reliably in my 300 Blackout rifle?
Yes. The Hornady Black 208gr is designed to function across the full range of 300 Blackout platforms including suppressed, unsuppressed, direct impingement, and piston systems. Many users report reliable cycling even in short-barreled rifles and suppressed setups. Like any ammunition, function can depend on your specific rifle's gas system and tuning, so it's always worth running a few rounds through first to confirm your setup.
Is this subsonic round quiet enough to shoot without hearing protection when suppressed?
At 1020 fps, this load is subsonic and will sound significantly quieter through a suppressor compared to supersonic 300 Blackout loads. Many shooters report it being hearing-safe when suppressed, though the overall noise level still depends on your specific suppressor, barrel length, and firearm type. A quality suppressor will maximize the quiet effect these subsonic rounds provide.
What's the advantage of the A-MAX bullet in this ammo?
The A-MAX is a match-grade bullet engineered for precision with a polymer tip, uniform jacket, and optimized boattail designed to maximize ballistic coefficient and consistency. For subsonic ammo especially, this uniformity and stability in flight matters because bullet drop becomes a real factor at distance. You get tighter groupings and more predictable performance than you would with standard ball ammo.
Can I reload the brass cases from this ammunition?
Yes. Hornady Black uses reloadable brass cases, so you can reload them after firing. This helps offset the cost per round if you reload your own ammunition regularly.







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