Winchester Super Suppressed 300 AAC Blackout subsonic ammunition is purpose-built for shooters running suppressors on their AR-pattern rifles and bolt guns. This load pairs a 200-grain open-tip projectile with subsonic velocity—below the sound barrier—to deliver the hearing-safe, quiet performance that defines modern suppressed shooting. Whether you're running drills at an indoor range, hunting predators at distance, or training with a can, this round gives you the clean, consistent shooting experience suppressors are meant to deliver.
The engineering behind Winchester's Super Suppressed line focuses on what matters to suppressed-gun shooters: minimizing fouling in both barrel and suppressor, controlling recoil, and maintaining shot-to-shot reliability. The encapsulated bullet base—a copper jacket that wraps the base of the core—reduces lead contamination buildup, so you spend more time shooting and less time scrubbing carbon out of your suppressor and bore. The subsonic velocity keeps your report hearing-safe without sacrificing the accuracy you need for precision work.
Winchester's reputation for consistent ammunition runs generations deep, and it shows here. This load works reliably in both suppressed and unsuppressed firearms, so if you're testing a new can or switching between builds, you don't need different ammo for the job. You get 20 rounds per box, loaded and ready to run.
| Caliber | 300 AAC Blackout |
| Bullet Weight | 200 grain |
| Bullet Type | Open Tip |
| Velocity | Subsonic |
| Rounds Per Box | 20 |
| Brand | Winchester |
Yes. Winchester Super Suppressed is engineered for reliable performance in both suppressed and non-suppressed firearms, so you can use it across your entire 300 Blackout inventory.
Subsonic ammunition travels below the speed of sound (roughly 1,125 fps), which eliminates the supersonic crack that occurs when a bullet breaks the sound barrier. This keeps noise levels hearing-safe, even with a suppressor, making quiet shooting possible for training, hunting, and tactical work.
The encapsulated bullet base is a copper jacket that fully encloses the base of the bullet core. This design prevents lead from separating and depositing inside your barrel and suppressor, reducing the amount of fouling buildup you'll encounter during extended shooting sessions.
Winchester Super Suppressed ammunition is trusted for target and range shooting and delivers consistent accuracy backed by Winchester's long legacy of ammunition quality. It's suitable for precision work where shot-to-shot consistency matters.
Ammunition Restrictions:
You must be 18 years or older to purchase shotgun or rifle ammunition, and 21 years or older for handgun ammunition. All ammunition must be shipped via Domestic Ground, and shipping is not available for international residents. Residents of CA, DC, IL, MA, NY, CT, and NJ may be subject to additional restrictions. Always ensure you use the appropriate ammunition for your firearms, and check your state and local laws for any other relevant regulations on firearms and ammunition. Due to Department of Transportation regulations, returns on ammo cannot be accepted. Please verify local laws before placing an order.
We are unable to ship ammunition to the following:
Illinois residents must provide a copy of a valid FOID Card or Valid Concealed Carry License, along with their IL driver’s license or IL state identification card to purchase ammunition. The ammunition can only be shipped to an address listed on either of those two documents.
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