Atomic 300 AAC Blackout Ammunition Subsonic Cycling ATOM300BLK220GRSUB 220 Grain Hollow Point Boat Tail 100 Rounds
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Atomic Ammunition’s .300 Blackout 220gr subsonic ammo is tuned for suppressed AR-15 reliability. This 220gr hollow point boat tail load delivers dependable semi-auto cycling, consistent subsonic velocity, and the quiet shooting experience the .300 BLK platform was designed to provide.
The .300 Blackout is the king of suppressed semi-auto shooting, and the 220gr subsonic is its signature load. Atomic’s cycling subsonic reliably feeds, fires, and ejects in standard AR-15 gas systems without the need for adjustable gas blocks. With a suppressor, noise drops below 125 dB – dramatically quieter than unsuppressed supersonic fire. The 538 ft-lbs of energy at the muzzle makes this an effective close-range option for home defense, and the match-grade HP BT delivers consistent accuracy at distances where subsonic shooting excels (inside 200 yards).
- Caliber: 300 AAC Blackout
- Bullet Weight: 220 Gr
- Bullet Type: Hollow Point
- Case Type: Brass
- Model: Subsonic Cycling
- Reloadable: Yes
- Rounds Per Box: 100 Rounds Per Box
- Boxes Per Case: 5 Boxes Per Case
- Muzzle Energy: 538 ft lbs
- Muzzle Velocity: 1050 fps
Technical Specifications
| Caliber | 300 AAC Blackout |
|---|---|
| Weight | 5 lbs |
| Manufacturer | Atomic Ammunition |
| Model | ATOM300BLK220GRSUB |
| SKU | CW1818522 |
| Availability | In Stock |
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Shipping & Returns
Shipping Information
- Orders typically process within 1-2 business days
- Ships via major carriers with tracking
- Tracking information provided for all orders
- Shipping costs calculated at checkout based on weight and destination
Return Policy
- 30-day return policy on accessories and non-firearms
- Items must be unused and in original packaging
- Contact us for return authorization before shipping items back
- Original shipping costs are non-refundable
Questions?
Contact us at 502-272-4859 or submit a question for assistance with shipping or returns.
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