Description
Magtech 300 Blackout Subsonic Ammo 1000 Rounds
Magtech 300 Blackout ammo gives rifle shooters a heavy 200-grain FMJ load in a bulk 1,000-round case.
This brass-case 300 Blackout ammo uses a 200-grain FMJ subsonic bullet and a range-ready build.
Magtech lists this load at 1,017 fps with 459 ft-lbs of muzzle energy from a 16-inch test barrel.
The heavy bullet and lower speed make it a good fit for 300 blackout range ammo, target shooting, range training, and suppressed 300 blackout ammo use where legal.
If you want 300 blackout ammo bulk for practice, this case is easy to store and use across many range trips.
Each case has 20 boxes of 50 rounds. The brass cases also help shooters who save reloadable brass.
Compared with supersonic 123-grain or 150-grain .300 Blackout FMJ loads, this Magtech 300BLKSUBA option uses a heavier bullet and a lower listed speed.
For related options, browse 300 AAC Blackout Ammo, Bulk Rifle Ammo, and Magtech Ammo.
Key Features
- Caliber: .300 AAC Blackout / 300 Blackout
- Bullet Weight: 200 Grain
- Bullet Type: FMJ Subsonic
- Manufacturer: Magtech
- Manufacturer SKU: 300BLKSUBA
- UPC, 1,000-Round Case: 754908210503
- UPC, 50-Round Box: 754908210510
- Case Type: Brass
- Muzzle Velocity: 1,017 fps
- Muzzle Energy: 459 ft-lbs
- Test Barrel: 16 inches
- Quantity: 1,000 Rounds
- Packaging: 20 boxes of 50 rounds
- Best Use: Target shooting, range training, suppressed-firearm range use where legal
Specs
| Field | Value |
|---|---|
| Product Name | 300 AAC Blackout – 200 gr FMJ Subsonic – Magtech 300BLKSUBA – 1,000 Rounds |
| Caliber | .300 AAC Blackout / 300 Blackout |
| Manufacturer | Magtech |
| Manufacturer SKU | 300BLKSUBA |
| UPC (1,000-Round Case) | 754908210503 |
| UPC (50-Round Box) | 754908210510 |
| Bullet Weight | 200 Grain |
| Bullet Type | FMJ Subsonic |
| Case Material | Brass |
| Muzzle Velocity | 1,017 fps |
| Muzzle Energy | 459 ft-lbs |
| Test Barrel Length | 16 inches |
| Box Quantity | 50 Rounds |
| Case Quantity | 1,000 Rounds |
| Packaging | 20 Boxes of 50 Rounds |
| Best Use | Target shooting, range training, and suppressed-firearm range use where legal |
| Buyer Note | FMJ subsonic .300 Blackout ammunition designed for target practice and training. Not intended as expanding hunting ammunition. |
| Function Note | Sound signature and cycling performance may vary depending on barrel length, suppressor configuration, gas system, and individual firearm setup. |





