Winchester144605350
Winchester Ammo Sup400 Super Suppressed 400Legend 300Gr Open Tip 20 Per Box/10 Case$24.18
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Availability: In Stock
Winchester Super Suppressed .300 Blackout ammunition brings match-grade reliability to suppressed rifle systems. Loaded with a 200-grain full metal jacket bullet, this subsonic rifle ammo is purpose-built for shooters running cans on their AR platforms or other .300 BLK hosts. The engineering prioritizes what suppressor users actually care about: low decibel signature, minimal action fouling, and the kind of shot-to-shot consistency you expect from Winchester.
Each round is loaded to subsonic velocities, which means the bullet never breaks the sound barrier—eliminating the supersonic crack that a suppressor can't touch. That translates to genuinely quiet shooting, whether on a dedicated subsonic barrel or a standard .300 BLK chamber. The full metal jacket construction keeps lead and copper deposits to a minimum, which matters when your suppressor is doing heavy work; less cleaning between sessions means more trigger time.
This ammunition delivers the same match-grade accuracy expectations Winchester is known for, whether you're shooting suppressed or adding your can after the fact. It runs reliably across both setups, so you're not locked into one configuration. Clean, consistent, and quiet—it's what suppressor-equipped shooters have been asking for.
| Cartridge | .300 Blackout |
| Bullet Weight | 200 grains |
| Bullet Type | Full Metal Jacket (FMJ) |
| Rounds Per Box | 125 |
| Boxes Per Case | 10 |
| Application | Suppressed and non-suppressed rifle |
Yes. The Super Suppressed line is engineered for reliable performance in both suppressed and non-suppressed setups, so you're not locked into one or the other.
Subsonic ammunition is loaded to velocities below the speed of sound (approximately 1,125 feet per second). When a bullet travels subsonic, it never creates a supersonic shock wave—the primary source of gunshot noise a suppressor can't eliminate. Subsonic rounds running through a can produce genuine hearing-safe levels.
The full metal jacket with copper enclosure around the bullet base minimizes lead and copper deposits in your barrel and suppressor bore. Cleaner internals mean less frequent maintenance and extended suppressor service life.
Yes, this ammunition is loaded for standard .300 Blackout chambers and will function in any rifle chambered in .300 BLK.
SKU: 200187905 • Weight: 1oz
Availability: In Stock
Winchester Super Suppressed .300 Blackout ammunition brings match-grade reliability to suppressed rifle systems. Loaded with a 200-grain full metal jacket bullet, this subsonic rifle ammo is purpose-built for shooters running cans on their AR platforms or other .300 BLK hosts. The engineering prioritizes what suppressor users actually care about: low decibel signature, minimal action fouling, and the kind of shot-to-shot consistency you expect from Winchester.
Each round is loaded to subsonic velocities, which means the bullet never breaks the sound barrier—eliminating the supersonic crack that a suppressor can't touch. That translates to genuinely quiet shooting, whether on a dedicated subsonic barrel or a standard .300 BLK chamber. The full metal jacket construction keeps lead and copper deposits to a minimum, which matters when your suppressor is doing heavy work; less cleaning between sessions means more trigger time.
This ammunition delivers the same match-grade accuracy expectations Winchester is known for, whether you're shooting suppressed or adding your can after the fact. It runs reliably across both setups, so you're not locked into one configuration. Clean, consistent, and quiet—it's what suppressor-equipped shooters have been asking for.
| Cartridge | .300 Blackout |
| Bullet Weight | 200 grains |
| Bullet Type | Full Metal Jacket (FMJ) |
| Rounds Per Box | 125 |
| Boxes Per Case | 10 |
| Application | Suppressed and non-suppressed rifle |
Yes. The Super Suppressed line is engineered for reliable performance in both suppressed and non-suppressed setups, so you're not locked into one or the other.
Subsonic ammunition is loaded to velocities below the speed of sound (approximately 1,125 feet per second). When a bullet travels subsonic, it never creates a supersonic shock wave—the primary source of gunshot noise a suppressor can't eliminate. Subsonic rounds running through a can produce genuine hearing-safe levels.
The full metal jacket with copper enclosure around the bullet base minimizes lead and copper deposits in your barrel and suppressor bore. Cleaner internals mean less frequent maintenance and extended suppressor service life.
Yes, this ammunition is loaded for standard .300 Blackout chambers and will function in any rifle chambered in .300 BLK.
SKU: 200187905 • Weight: 1oz