Atomic Ammunition 223 Remington Subsonic 77 Grain HPBT - Box of 50 Rounds

The Atomic Ammunition 223 Remington Subsonic 77 Grain HPBT is purpose-built for shooters who need reliable, hearing-safe rifle rounds. Subsonic ammunition travels below the speed of sound, making it ideal for suppressed rifles where you want to minimize noise signature without sacrificing stopping power. The 77-grain hollow point boat tail projectile delivers consistent expansion and penetration, whether you're shooting suppressed or unsuppressed on the range or in the field.

Each box contains 50 rounds of centerfire rifle ammunition ready to load into your magazine. The hollow point design promotes controlled expansion on impact, while the boat tail profile helps stabilize the round in flight for better accuracy downrange. Subsonic loads trade some velocity for the tactical advantage of a quieter shot—a meaningful difference when you're running a suppressor or hunting where stealth matters.

Atomic builds this load with precision and consistency in mind. Whether you're running drills at an indoor range, testing your suppressed setup, or hunting in tight quarters, subsonic 223 ammo sits at the intersection of accuracy and practicality. Stock a box or two for your next range session or hunting trip.

Key Features

• 77-grain hollow point boat tail projectile for controlled expansion
• Subsonic velocity optimized for suppressed shooting
• 50 rounds per box, centerfire rifle ammunition
• Designed for consistency and reliable feeding

Specifications

Frequently Asked Questions

What is subsonic ammunition, and why would I use it?

Subsonic ammunition is loaded to travel below the speed of sound (approximately 1,125 fps at sea level). When paired with a suppressor, subsonic rounds eliminate the supersonic crack that follows the bullet, resulting in a much quieter shot. This makes them popular for suppressed shooting, close-quarters hunting, and range sessions where noise control matters.

Will subsonic 223 work in my standard AR or rifle?

Yes, subsonic 223 Remington ammunition will chamber and fire in any rifle chambered in 223 Remington. The only difference is velocity—subsonic loads travel slower than standard-velocity rounds, so you'll notice less muzzle blast and recoil.

What's included in a box?

Each box contains 50 rounds of loaded Atomic Ammunition 223 Remington Subsonic ammunition, ready to use.

Is the 77-grain HPBT bullet good for hunting?

The 77-grain hollow point boat tail projectile is designed for expansion on impact. Suitability for hunting depends on your intended game and local regulations—consult your state's hunting guide and always verify ammunition compliance with local laws.