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300 Blackout Ammo

Stock up on premium .300 Blackout ammo at Palmetto State Armory, your trusted source for reliable and affordable ammunition. Choose from a wide range of supersonic and subsonic rounds from top brands, perfect for hunting, self-defense, or target shooting. While you are stocking up on blackout ammo check out our large selection of 300 blackout uppers and 300 blackout rifles.  With competitive prices, fast shipping, and unmatched quality, we make it easy to keep your rifle ready for any scenario.

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300 Blackout Subsonic Ammo

300 Blackout Subsonic Ammo
300 Blackout Firearms

300 Blackout Firearms
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  1. Sig Sauer 300 Blackout 220 gr Elite Hunter Tipped Ammo

    SIG Sauer 300 Blackout 205 gr Elite Hunting Varmint & Predator Ammo - E300H2-20

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  2. Sig Sauer 205 gr Jacketed Hollow Point .300 Blackout Ammo - E300H2SBR20

    Sig Sauer 205 gr Jacketed Hollow Point .300 Blackout Ammo - E300H2SBR20

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  3. G2 Research 300 AAC Blackout Trident Sub-Sonic 220gr Ammunition 20rds - G2R300TRSUB

    G2 Research 300 AAC Blackout Trident Sub-Sonic 220gr Ammunition 20rds - G2R300TRSUB

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  4. Maxim Defense .300 AAC Blackout Ammunition, 20 Rounds Solid Copper 115Gr - MXM49004

    Maxim Defense .300 AAC Blackout Ammunition, 20 Rounds Solid Copper 115Gr - MXM49004

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  5. Underwood Ammo .300 AAC Blackout 125 gr BTBT 20rds

    Underwood Ammo .300 AAC Blackout 125 gr BTBT 20rds

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  6. Winchester Silvertip 150 gr Defense Tip 300 Blackout Ammunition For Sale

    Winchester Silvertip 150 gr Defense Tip 300 Blackout Ammunition 20 Rounds - W300ST

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  7. G2 Research .300 AAC Blackout Rip Out Supersonic 20 Rounds Ammunition - G2R30ROSUPER

    G2 Research .300 AAC Blackout Rip Out Supersonic 20 Rounds Ammunition - G2R30ROSUPER

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  8. DoubleTap Lead Free .300 AAC Blackout Ammunition, 20 Rounds Solid Copper 110Gr - 300BK110X

    DoubleTap Lead Free .300 AAC Blackout Ammunition, 20 Rounds Solid Copper 110Gr - 300BK110X

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  9. G2 Research 300 AAC Blackout Trident Sub-Sonic Ammunition 20rds - G2R30ROSUB

    G2 Research 300 AAC Blackout Trident Sub-Sonic Ammunition 20rds - G2R30ROSUB

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  10. NOVX Close Encounter 110gr .300BLK Ammo, 20rds - 300BLK110CE-20

    NOVX Close Encounter 110gr .300BLK Ammo, 20rds - 300BLK110CE-20

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  11. Liberty Animal Instinct 300 AAC Blackout 96 gr Fragmenting Hollow-Point 20 Rounds Ammunition

    Liberty Animal Instinct 300 AAC Blackout 96 gr Fragmenting Hollow-Point 20 Rounds Ammunition

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  12. Noveske 300 AAC Blackout 220gr Ballistic Glow Tip Ammunition 20rds - 52235

    Noveske 300 AAC Blackout 220gr Ballistic Glow Tip Ammunition 20rds - 52235

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  13. Hornady Frontier 125 gr FMJ 300 AAC Blackout Ammo

    Hornady Frontier 125 gr FMJ 300 AAC Blackout Ammo - 50 Rds/Bx - FR401

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  14. Hyperion Munitions Veteran .300 AAC Blackout 220 gr FMJ 50rds Rifle Ammo for Heavy Duty Use - HMBX300BLK22050

    Hyperion Munitions Veteran .300 AAC Blackout 220 gr FMJ 50rds Rifle Ammo for Heavy Duty Use - HMBX300BLK22050

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  15. Steyr Aug A3 M1 .300AAC Rifle w/ Steyr Optic & Steyr Aug 20" Interchangeable .223/5.56 Barrel

    Steyr Aug A3 M1 .300AAC Rifle w/ Steyr Optic & Steyr Aug 20" Interchangeable .223/5.56 Barrel

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Learn More about .300 AAC Blackout Ammo

History of .300 AAC Blackout Ammo

The .300 AAC Blackout, developed in the late 2000s by Advanced Armament Corporation with Remington Defense, was designed to overcome the limitations of the 5.56 NATO in AR-15 platforms. The goal was to create a cartridge that excelled with both supersonic and subsonic loads, performed well in short barrels, and remained compatible with standard AR-15 magazines and bolts. Officially standardized by SAAMI in 2011, the .300 BLK quickly gained popularity in both military and civilian markets, appealing to shooters who value flexibility and performance across diverse scenarios.

Practical Application

The .300 BLK stands out for its versatility, excelling in short-barreled rifles, which makes it ideal for home defense and tactical scenarios where compact firearms are preferred. Its performance with a suppressor provides near-silent operation, perfect for close-quarters environments. Hunters also appreciate the .300 BLK’s effectiveness on medium-sized game like deer and hogs at shorter ranges. Additionally, its compatibility with AR-15 platforms allows users to switch between .300 BLK and 5.56 with just a barrel change, offering flexibility without the need for a new rifle setup.

Accuracy

The .300 BLK offers impressive accuracy at closer ranges, making it ideal for dense woods, urban settings, and other short-to-medium range scenarios. Its manageable recoil helps shooters stay on target for quicker follow-up shots, providing reliable performance within 100 to 200 yards. Paired with a quality optic, the .300 BLK excels in hunting, home defense, and tactical training, delivering dependable accuracy in a variety of environments.

Supersonic and Subsonic Differences

One of the most distinctive features of the .300 BLK is its ability to switch between supersonic and subsonic loads, which opens up options based on what you need the round to do.

  1. Supersonic Rounds: These rounds, typically between 110 and 150 grains, hit at higher muzzle velocities around 2,000 feet per second (fps). Supersonic rounds offer a flatter trajectory and greater impact energy, which can be a big plus for hunting or self-defense situations. They’re louder than subsonic rounds but provide a powerful punch when sound isn’t a concern.
  2. Subsonic Rounds: Loaded with heavier bullets (often 190 grains or more), subsonic .300 BLK ammo is designed to stay under the sound barrier, keeping noise low. When paired with a suppressor, subsonic rounds are extremely quiet, making them a favorite for tactical scenarios, hunting, or even range practice where stealth or comfort is key. While you sacrifice a bit of long-range effectiveness, the subsonic option brings great versatility for those looking to reduce noise.

Switching between these loads gives shooters the freedom to customize based on what’s needed at the time, whether it’s maximum stopping power with supersonic or minimal noise with subsonic.

Affordability

The .300 BLK is generally more expensive than standard .223 or 5.56 ammo, largely due to lower production volumes and its specialized nature. Subsonic rounds add to the cost due to a smaller market, placing .300 BLK pricing between 5.56 and .308 Win. While pricier, it offers unique benefits—excellent performance in short barrels, versatility between supersonic and subsonic loads, and compatibility with suppressors. For frequent shooters, buying in bulk or reloading can help manage costs, making the .300 BLK more affordable over time.

Why Order .300 AAC Blackout Ammo from Palmetto State Armory?

Palmetto State Armory offers high-quality .300 Blackout ammo at competitive prices, making it the ideal choice for shooters seeking reliability and performance. With a wide selection of supersonic and subsonic options, our .300 Blackout rounds are perfect for hunting, home defense, and tactical training. Plus, our fast shipping ensures you get your ammo quickly, so you’re always ready for your next range day or hunting trip. Trust Palmetto State Armory for premium .300 Blackout ammo to meet all your shooting needs.