Hornady 300 Blackout 190gr Sub-X Subsonic Ammo – 20 Rounds
- 300 Blackout, 190gr Sub-X subsonic
- 20 rounds – 20-round box
- Factory new
- Advertised velocity: 1050 fps
Ships within the U.S. only.
- Estimated Delivery : Up to 4 business days
- Free Shipping & Returns : On all orders over $200
This Hornady Subsonic 300 Blackout 190gr Sub-X subsonic load is built for suppressed shooting and comes as 20 rounds. Packaging: 20-round box. Subsonic loads stay below the speed of sound, which is why shooters pick them for suppressed firearms and low-recoil competition shooting.
Cases are listed as: factory new.
Subsonic 300 Blackout is usually paired with a suppressor, and some semi-auto rifles may need gas adjustment to cycle it reliably. Our subsonic ammo guide goes through the basics.
Specifications
| Caliber | 300 Blackout |
|---|---|
| Bullet weight | 190 grain |
| Bullet type | Sub-X subsonic |
| Round count | 20 |
| Packaging | 20-round box |
| Brand | Hornady |
| Product line | Subsonic |
| Case condition | Factory new |
| Advertised velocity | 1050 fps |
| Best for | suppressed shooting |
Frequently asked questions
Is this 300 Blackout ammo new or remanufactured?
The listing describes the cases as factory new.
What does subsonic mean?
Subsonic ammunition is loaded to travel slower than the speed of sound, roughly 1,100 feet per second at sea level, so it avoids the supersonic crack. It is usually chosen for suppressed shooting.
Browse more 300 Blackout ammo in our range, or see our bulk ammo for larger quantities. Pack-size alternatives are listed under “You may also like” below.
Ships within the United States only. Laws on buying, shipping and owning ammunition differ by state and locality, so check yours before you order. An adult signature may be required at delivery. See our shipping and state restrictions page.
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