Premium Atomic Ammunition 00427 Rifle Match .223 Rem 77gr HPBT – 50 Rounds
- Capacity-Rounds:
- 50
- Caliber-Gauge:
- 223 Remington / 5.56 NATO
- Grain:
- 77
- Muzzle Velocity:
- 2600
- Application:
- Hunting
- Muzzle Energy:
- 1155 ft lbs
- HazAir:
- Yes
Atomic Premium Match ammunition in .223 Remington delivers the precision and consistency serious rifle competitors and long-range shooters demand. Built on a 77-grain hollow point boat tail (HPBT) projectile, this round is engineered for tight shot grouping and predictable ballistics downrange. Whether you're dialing in at the bench, running a precision rifle course, or competing in sanctioned matches, Atomic Match ammo gives you the repeatability needed to trust your data and your shooting.
The 77gr HPBT design offers an aerodynamic profile that resists wind deflection and maintains velocity over distance—critical for precision rifle shooting where every tenth of an inch counts. Boat tail construction reduces drag and improves stability in flight, while the hollow point geometry supports consistent expansion characteristics. This is the kind of ammo that rewards good technique and tight rifle setup with even tighter groups.
You'll receive 50 rounds per box, the standard for match-grade ammunition. Stock up in cases of ten boxes for frequent shooters and competitors who log serious range time. Atomic Match ammunition is loaded to exacting specifications, making it a reliable choice for shooters who refuse to compromise on consistency.
Key Features
- 77-grain hollow point boat tail (HPBT) projectile for enhanced aerodynamics and accuracy
- Designed for precision rifle shooting, benchrest work, and competition
- 50 rounds per box—standard match ammunition packaging
- Consistent ballistics support tight shot grouping and predictable long-range performance
Specifications
| Caliber | .223 Remington |
| Bullet Weight | 77 grains |
| Bullet Style | Hollow Point Boat Tail (HPBT) |
| Rounds Per Box | 50 |
| Brand | Atomic Ammunition |
Frequently Asked Questions
What is .223 Remington ammunition used for?
.223 Remington is the standard rifle cartridge for AR-15s, bolt-action precision rifles, and many semiautomatic platforms. It's widely used for target shooting, precision rifle competitions, hunting small to medium game, and training. The 77-grain HPBT load is particularly suited to match shooting and long-range precision work.
Why choose match-grade ammunition over standard rounds?
Match ammunition is loaded to tighter tolerances for more consistent velocity, bullet weight, and overall length. This consistency translates directly to tighter groups at distance, making it the preferred choice for competitive shooters, benchrest testing, and anyone dialing in loads where precision matters.
What does HPBT mean and why does it matter?
HPBT stands for Hollow Point Boat Tail. The boat tail reduces aerodynamic drag and improves ballistic coefficient for better long-range stability, while the hollow point supports expansion if the round is used for hunting. For match shooting, the aerodynamic benefits are the primary advantage.
How many rounds are in a box?
Each box contains 50 rounds. Cases are available and contain ten boxes (500 rounds total) for high-volume shooters and competitors.
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:
- Hawaii
- Alaska
- P.O. Boxes
- APO/FPO Addresses
- International Addresses
- U.S. Territories
- U.S. addresses with zip codes starting with (100, 101, 102)
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.
Email: [email protected]

