Unlocking Suppressed Performance: The Atomic 00465 Rifle Subsonic .300 Blackout 220 gr HPBT Ammunition

For discerning shooters seeking the ultimate in quiet, effective, and precise performance, the Atomic Ammunition 00465 Rifle Subsonic .300 Blackout 220 Grain Hollow Point Boat Tail (HPBT) rounds represent a pinnacle of specialized engineering. This ammunition is meticulously crafted for those who demand discreet operation, superior accuracy, and reliable terminal performance, particularly when paired with a suppressor.

What is .300 Blackout Subsonic Ammunition, and Why Does It Matter?

The .300 Blackout cartridge itself was designed with versatility in mind, capable of excelling in both supersonic and subsonic configurations within the same firearm platform, most notably the AR-15. When paired with a suppressor, the .300 Blackout truly shines, especially with subsonic loads.

• Supersonic vs. Subsonic: The speed of sound varies slightly with temperature and altitude, but generally hovers around 1,125 feet per second (fps). Supersonic ammunition travels faster than sound, creating a distinct sonic crack as the bullet breaks the sound barrier. Subsonic ammunition, conversely, is engineered to stay below the speed of sound, eliminating this sonic crack.
• The Suppressor Advantage: When a subsonic bullet exits a suppressed firearm, the primary noise sources are reduced to the mechanical action of the firearm and the sound of the expanding gases. By removing the sonic crack, the overall sound signature is dramatically reduced, making for a much quieter shooting experience. This is invaluable for:
  • Discreet Training: Enabling more comfortable and less disruptive practice sessions.
  • Hunting: Reducing disturbance to game and minimizing auditory impact on the environment.
  • Home Defense: Mitigating hearing damage in a confined space during a critical incident.
  • Tactical Applications: Providing a tactical advantage where stealth is paramount.

The Atomic 00465 rounds are purpose-built to harness this subsonic advantage, delivering consistent, reliable performance that shooters can trust.

Who Benefits Most from Atomic 00465 Subsonic .300 Blackout?

This specialized ammunition is ideal for a wide range of users and scenarios. If you've ever asked yourself:

• "What's the quietest ammunition for my suppressed .300 Blackout rifle?"
• "Which rounds offer effective terminal ballistics for hunting medium game while maintaining subsonic speeds?"
• "How can I reduce the noise signature of my AR-15 for home defense or tactical use?"
• "I need reliable cycling in my gas-piston or direct impingement AR-platform rifle with a suppressor – what's best?"
• "What ammunition provides consistent accuracy for precision shooting at closer ranges with a suppressed firearm?"

Then the Atomic 00465 is a prime candidate for your ammunition choice.

Key Features and Design Excellence of the Atomic 00465

Let's break down the specific attributes that make this ammunition stand out:

1. 220 Grain Bullet Weight: This heavy-for-caliber bullet weight is a cornerstone of effective subsonic performance. A heavier bullet retains more energy at subsonic velocities, ensuring sufficient kinetic energy for effective terminal performance without exceeding the sound barrier. The substantial mass helps maintain stability and momentum downrange.
2. Hollow Point (HP) Design: The hollow point projectile is designed for controlled expansion upon impact. Unlike full metal jacket (FMJ) rounds, which are primarily designed for penetration, the hollow point expands, creating a larger wound channel and efficiently transferring energy to the target. This makes the Atomic 00465 suitable for:
   • Hunting: Delivering decisive energy transfer for ethical harvesting of medium-sized game.
   • Self-Defense/Home Defense: Maximizing stopping power and minimizing over-penetration in critical situations.
3. Boat Tail (BT) Profile: The boat tail design refers to the tapered base of the bullet. This aerodynamic shape significantly improves the bullet's ballistic coefficient (BC), which is a measure of its ability to overcome air resistance. A higher BC translates to:
   • Enhanced Accuracy: Reduced drag means the bullet maintains its trajectory more consistently, leading to tighter groups.
   • Improved Stability: The boat tail helps the bullet fly straighter and resist yawing or tumbling, even at subsonic speeds.
   • Reliable Performance at Range: While subsonic rounds have a more pronounced bullet drop than supersonic ones, the boat tail design ensures that their performance remains predictable and accurate out to their effective range.
4. Optimized for Suppressed Firearms: The combination of heavy bullet weight, subsonic velocity, and meticulous quality control ensures that these rounds cycle reliably in a variety of suppressed .300 Blackout firearms, including popular AR-15 platforms and bolt-action rifles. Atomic Ammunition designs these rounds to minimize fouling and maximize consistent gas port pressure, critical for reliable cycling with a suppressor attached.

Real-World Applications and Advantages

• Ultimate Stealth for Hunting: Imagine stalking your prey with minimal noise, ensuring you don't spook other animals or alert your target unnecessarily. The Atomic 00465 allows hunters to use their suppressed .300 Blackout rifles for hogs, coyotes, and other medium game, focusing on the shot without the distracting crack of a supersonic round. The hollow point ensures rapid, humane energy transfer.
• Home Defense with Reduced Recoil and Noise: In a stressful home defense scenario, the less noise, the better. Subsonic rounds significantly reduce the muzzle report, protecting your hearing and minimizing disorienting concussive forces in a confined space. The reduced recoil, a natural consequence of heavier, slower bullets, also allows for faster follow-up shots and better control, crucial when every second counts.
• Tactical and Professional Use: For law enforcement or military personnel who require discretion and effective close-quarters combat (CQB) capabilities, the Atomic 00465 offers a compelling solution. Its quiet operation and potent terminal ballistics make it an excellent choice for specialized applications where minimizing sound and maximizing target effect are paramount.
• Enhanced Training Experience: Long training sessions can be fatiguing, especially when dealing with constant loud reports. By using suppressed subsonic ammunition, shooters can train for extended periods with greater comfort, reducing ear fatigue and improving focus on fundamental skills. This also makes range time more enjoyable for everyone.

Why Choose Atomic Ammunition?

Atomic Ammunition has established itself as a reputable manufacturer known for its commitment to quality control and precision. When selecting ammunition, consistency is key – shot after shot, you want predictable performance. Atomic achieves this through:

• Rigorous Testing: Each batch of ammunition undergoes stringent quality assurance to ensure consistent velocities, pressures, and overall performance.
• Premium Components: Using high-quality propellants, primers, and bullet components ensures reliability and accuracy.
• Specialization: Atomic Ammunition often focuses on specialized loads, like this subsonic .300 Blackout, demonstrating an understanding of specific shooter needs and optimizing their products to meet those demands.

Choosing Atomic Ammunition means investing in rounds designed for peak performance and reliability, particularly for the unique demands of suppressed shooting.

Purchasing and Availability

For those ready to experience the advantages of the Atomic 00465 Rifle Subsonic .300 Blackout 220 gr Hollow Point Boat Tail ammunition, it is readily available for purchase at DEGuns. DEGuns offers a reliable platform to acquire this specialized ammunition, ensuring you receive genuine Atomic products for your shooting needs. Each box contains 50 rounds, and cases typically contain 10 boxes, providing ample supply for training, hunting, or defensive purposes.

The Atomic 00465 represents a carefully engineered solution for shooters who prioritize quiet operation, precision, and effective terminal performance in their .300 Blackout firearms. It's more than just ammunition; it's an enhancement to the shooting experience, unlocking the full potential of your suppressed rifle.

Atomic 00465 Rifle Subsonic .300 Blackout Specifications

Feature	Description
Caliber	.300 Blackout (AAC Blackout)
Bullet Weight	220 Grain
Bullet Type	Hollow Point Boat Tail (HPBT)
Velocity	Subsonic (Designed to remain below the speed of sound)
Application	Suppressed Shooting, Hunting (Medium Game), Home Defense, Target Shooting
Quantity per Box	50 Rounds
Quantity per Case	10 Boxes
UPC	856985004651