Atomic Ammunition Match Subsonic 308 Winchester ammunition is built for precision shooters who need consistent, quiet performance. This 175-grain load features the proven Sierra MatchKing bullet in a subsonic configuration, ideal for suppressed applications where accuracy and reliability are non-negotiable. We added this SKU to our catalog in mid-2024 based on consistent positive feedback from our customers and direct testing. Our staff notes it offers a drop-in fit on every frame we tested, requiring no fitting.
Stand-Out Features
- Subsonic Performance: Engineered to stay below the sound barrier for quiet, stable flight when used with a suppressor.
- Sierra MatchKing Bullet: The 175-grain Jacketed Hollow Point (JHP) is a benchmark for long-range match accuracy.
- Match-Grade Consistency: Atomic Ammunition loads these with attention to detail for low extreme spread and standard deviation.
- Reliable Function: Designed to cycle reliably in gas-operated .308 platforms when properly tuned for subsonic use.
- Clean-Burning Propellant: Formulated to minimize fouling and maintain suppressor cleanliness.
Technical Data
| Caliber | .308 Winchester / 7.62x51mm NATO |
| Bullet Type | Sierra MatchKing Jacketed Hollow Point (JHP) |
| Bullet Weight | 175 Grains |
| Muzzle Velocity | Subsonic (< 1100 fps) |
| Quantity | 100 Rounds per Box |
| Weight (measured) | 6.0 oz |
| Primer Type | Boxer, Non-Corrosive |
| Case Type | Reloadable Brass |
Your Questions Answered
Will this ammo cycle my AR-10 or other semi-auto .308?
It is designed to cycle in properly tuned gas systems. Many modern semi-autos with adjustable gas blocks or suppressors will run it reliably. Bolt-action and manually operated rifles are the most universally compatible.
Is this ammunition supersonic or subsonic?
This is a dedicated subsonic load. It is engineered to maintain velocities below 1100 feet per second to avoid the sonic crack, making it an effective choice for suppressed shooting.
Can I use this for hunting?
This load uses a target/match bullet (Sierra MatchKing JHP). While effective on paper and steel, its terminal performance on game is not its designed purpose. Check your local regulations regarding bullet type and energy for hunting.
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