Description
Sellier & Bellot .300 AAC Blackout 147-Grain Full Metal Jacket ammunition (part no. SB300BLKB) stands as an inexpensive option for shooters who want to blast away at the range without worrying about the cost of a suppressed subsonic load. Sellier & Bellot‘s newer .300 Blackout line is built for fast-action drills, zeroing, and plinking when noise suppression isn’t a concern, running supersonic for standard AR-platform use. Sellier & Bellot has manufactured small-caliber ammunition for nearly two centuries, backing this loading with proven manufacturing consistency. This rifle ammunition suits high-volume range days in a .300 Blackout rifle or pistol.
Key Specifications
- The caliber is .300 AAC Blackout, built to run in a standard AR-15 magazine and bolt.
- The bullet weighs 147 grains, a standard supersonic .300 Blackout weight for practice use.
- The bullet is a full metal jacket, straightforward construction for high-volume range shooting.
- This loading runs supersonic, built for standard practice rather than suppressed subsonic use.
- Rated muzzle velocity is 2076 fps, typical for supersonic .300 Blackout practice ammunition.
- Muzzle energy is rated at 1406 ft-lbs, solid energy for a practice-grade .300 Blackout load.
- The case material is brass, standard for reliable chambering and extraction.
- Each box holds 20 rounds, a practical count for a range session.
- Cost runs about $0.95 per round, affordable pricing built for fast-action drills and plinking.
- Fifty boxes ship per case (1,000 rounds total), a bulk option built specifically for high-volume range days.
Frequently Asked Questions
Is this a subsonic or supersonic load? It’s a supersonic loading, built for standard practice and fast-action drills rather than suppressed subsonic shooting.
What is this ammunition best used for? It’s an inexpensive option built for high-volume range use, zeroing, and fast-action drills where noise suppression isn’t a concern.
Buy Sellier & Bellot .300 AAC Blackout Ammunition
High-volume range days call for an affordable .300 Blackout supply that doesn’t cut corners, and this FMJ loading is built for exactly that kind of trigger time. Order it from our Lubbock, Texas gun shop and it ships fast to your door.
Additional Information
| Bullet Weight (Grains) | 147 |
|---|---|
| Caliber/Gauge | .300 AAC Blackout |
| Case Material | Brass |
| Cost per Round | 0.95 |
| Grains | 147 gr |
| Length | 4.1000 |
| Manufacturer | Sellier & Bellot |
| Manufacturer Part Number | SB300BLKB |
| Model | Rifle |
| Product Type | Full Metal Jacket |
| Units per Box | 20 |
| UPC | 754908512454 |







