300 Blackout Ammo

Intended to offer .30 caliber performance in the U.S. military's AR-style rifle, the .300 AAC Blackout surpasses the 7.62x39 in terminal performance – especially in shorter barrels. Another benefit of .300 Blackout ammo is that the cartridges function in standard AR magazines. Learn More

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  1. Magtech First Defense 300 Blackout Ammo - 500 Rounds of 123 Grain FMJ Ammunition

    57 In stock now
    Image For 500 Rounds Of 123 Grain FMJ Boxer Brass 300 Blackout Magtech Ammunition
    $290.00 Price

    Qty:

    • 500 Rounds
    • Made by Magtech

    • New Condition
    • 500 Rounds
    • Made by Magtech
    • Foreign Discount Range
    • 58¢ Cost Per Round
    • Magtech SKU 300BLKB
    • UPC R05252016432
  2. 300 AAC Blackout - 124 Grain FMJ - Sellier & Bellot - 500 Rounds

    12 In stock now

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    Image For 500 Rounds Of 200 Grain FMJ Boxer Brass 300 Blackout Sellier and Bellot Ammunition
    $300.00 Price

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    • 500 Rounds
    • Made by Sellier and Bellot

  3. Magtech 300 Blackout Ammo - 20 Rounds of 123 Grain FMJ Ammunition

    71 In stock now

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    Image For 50 Rounds Of 123 Grain FMJ Boxer Brass 300 Blackout Magtech Ammunition
    $31.99 Price

    Qty:

    • 50 Rounds
    • Made by Magtech

    • New Condition
    • 50 Rounds
    • Made by Magtech
    • Foreign Discount Range
    • 64¢ Cost Per Round
    • Magtech SKU 300BLKB
    • UPC 754908209613
  4. Fiocchi 300 Blackout Ammo - 500 Rounds of 150 Grain FMJ Ammunition

    40 In stock now

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    Image For 500 Rounds Of 150 Grain FMJ-BT Boxer Brass 300 Blackout Fiocchi Ammunition
    $319.99 Price

    Qty:

    • 500 Rounds
    • Made by Fiocchi

    • New Condition
    • 500 Rounds
    • Made by Fiocchi
    • Foreign Discount Range
    • 64¢ Cost Per Round
    • Fiocchi SKU 300BLKC
    • UPC 762344863580
  5. Sellier and Bellot 300 Blackout Ammo - 20 Rounds of 124 Grain FMJ Ammunition

    74 In stock now

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    Image For 20 Rounds Of 124 Grain FMJ Boxer Brass 300 Blackout Sellier and Bellot Ammunition
    $13.75 Price

    Qty:

    • 20 Rounds
    • Made by Sellier and Bellot

  6. Federal American Eagle 300 AAC Blackout Ammo - 500 Rounds of 150 Grain FMJ Ammunition

    9 In stock now

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    Image For 500 Rounds Of 150 Grain FMJ Boxer Brass 300 Blackout Federal Ammunition
    $349.99 Price

    Qty:

    • 500 Rounds
    • Made by Federal

    • New Condition
    • 500 Rounds
    • Made by Federal
    • American-made Discount Range
    • 70¢ Cost Per Round
    • Federal SKU AE300BLK1
    • UPC 50004544617002
  7. Fiocchi 300 Blackout Ammo - 50 Rounds of 150 Grain FMJ-BT Ammunition

    9 In stock now

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    Image For 50 Rounds Of 150 Grain FMJ-BT Boxer Brass 300 Blackout Fiocchi Ammunition
    $36.99 Price

    Qty:

    • 50 Rounds
    • Made by Fiocchi

    • New Condition
    • 50 Rounds
    • Made by Fiocchi
    • Foreign Discount Range
    • 74¢ Cost Per Round
    • Fiocchi SKU 300BLKC
    • UPC 762344711010
  8. Fiocchi Extrema 300 Blackout Ammo - 500 Rounds of 125 Grain SST Ammunition

    7 In stock now

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    Image For 500 Rounds Of 125 Grain SST Boxer Brass 300 Blackout Fiocchi Ammunition
    $369.99 Price

    Qty:

    • 500 Rounds
    • Made by Fiocchi

    • New Condition
    • 500 Rounds
    • Made by Fiocchi
    • American-made Discount Hunting
    • 74¢ Cost Per Round
    • Fiocchi SKU 300BLKHA
    • UPC 762344863610
  9. Federal American Eagle 300 Blackout Ammo - 20 Rounds of 150 Grain FMJ Ammunition

    7 In stock now

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    Image For 20 Rounds Of 150 Grain FMJ Boxer Brass 300 Blackout Federal Ammunition
    $15.99 Price

    Qty:

    • 20 Rounds
    • Made by Federal

    • New Condition
    • 20 Rounds
    • Made by Federal
    • American-made Discount Range
    • 80¢ Cost Per Round
    • Federal SKU AE300BLK1
    • UPC 604544617009
  10. Fiocchi Extrema 300 Blackout Ammo - 25 Rounds of 125 Grain SST Ammunition

    35 In stock now

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    Image For 25 Rounds Of 125 Grain SST Boxer Brass 300 Blackout Fiocchi Ammunition
    $20.99 Price

    Qty:

    • 25 Rounds
    • Made by Fiocchi

    • New Condition
    • 25 Rounds
    • Made by Fiocchi
    • American-made Discount Hunting
    • 84¢ Cost Per Round
    • Fiocchi SKU 300BLKHA
    • UPC 762344711188
  11. Sellier and Bellot 300 Blackout Ammo - 20 Rounds of 147 Grain FMJ Ammunition

    80 In stock now

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    Image For 20 Rounds Of 147 Grain FMJ Boxer Brass 300 Blackout Sellier and Bellot Ammunition
    $16.99 Price

    Qty:

    • 20 Rounds
    • Made by Sellier and Bellot

  12. Remington 300 Blackout Ammo - 200 Rounds of 120 Grain OTFB Ammunition

    35 In stock now

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    Image For 200 Rounds Of 120 Grain Open Tip Boxer Brass 300 Blackout Remington Ammunition
    $169.99 Price

    Qty:

    • 200 Rounds
    • Made by Remington

    • New Condition
    • 200 Rounds
    • Made by Remington
    • American-made Range
    • 120 Grain
    • Open Tip Bullet
    • Brass Casing
    • Boxer Primer
    • 85¢ Cost Per Round
    • Remington SKU L300AAC1
    • UPC 047700470719
  13. Barnes Range AR 300 Blackout Ammo - 20 Rounds of 90 Grain OTM Ammunition

    10 In stock now

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    Image For 20 Rounds Of 90 Grain OTM Boxer Brass 300 Blackout Barnes Ammunition
    $18.99 Price

    Qty:

    • 20 Rounds
    • Made by Barnes

    • New Condition
    • 20 Rounds
    • Made by Barnes
    • American-made Range
    • 95¢ Cost Per Round
    • Barnes SKU 30733
    • UPC 716876150878
  14. Remington 300 Blackout Ammo - 20 Rounds of 120 Grain OTM Ammunition

    79 In stock now

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    Image For 20 Rounds Of 120 Grain Open Tip Boxer Brass 300 Blackout Remington Ammunition
    $19.99 Price

    Qty:

    • 20 Rounds
    • Made by Remington

    • New Condition
    • 20 Rounds
    • Made by Remington
    • American-made Range
    • 120 Grain
    • Open Tip Bullet
    • Brass Casing
    • Boxer Primer
    • 100¢ to $1.00 Cost Per Round
    • Remington SKU L300AAC1
    • UPC 047700470702
  15. Hornady 300 Blackout Ammo - 20 Rounds of 135 Grain FTX Ammunition

    50 In stock now

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    Image For 20 Rounds Of 135 Grain FTX Boxer Brass 300 Blackout Hornady Ammunition
    $22.99 Price

    Qty:

    • 20 Rounds
    • Made by Hornady

    • New Condition
    • 20 Rounds
    • Made by Hornady
    • American-made Hunting
    • $1.15 Cost Per Round
    • Hornady SKU 80881
    • UPC 090255808810
  16. Barnes VOR-TX 300 Blackout Ammo - 20 Rounds of 120 Grain Polymer Tipped Ammunition

    22 In stock now

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    Image For 20 Rounds Of 120 Grain Polymer Tipped Boxer Brass 300 Blackout Barnes Ammunition
    $29.99 Price

    Qty:

    • 20 Rounds
    • Made by Barnes

    • New Condition
    • 20 Rounds
    • Made by Barnes
    • American-made Hunting
    • 120 Grain
    • Polymer Tipped Bullet
    • Brass Casing
    • Boxer Primer
    • $1.50 Cost Per Round
    • Barnes SKU 30827
    • UPC 716876301201
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In 2010, Advanced Armament Corporation developed the .300 AAC Blackout with the intention of offering a .30 caliber cartridge with better performance than the 5.56mm ammunition currently in use. Replacing the 5.56 NATO cartridge is an idea that has been around since its introduction, but the urgency rose with the global war on terror, which rapidly placed many of our troops in harm's way across many different situations and unfamiliar geography.

The key motivator to consider replacing the 5.56 NATO was the increased terminal performance offered by a .30 caliber round. This alone, however, would not necessarily justify wholesale replacement of the military's primary issue rifle. Any cartridge that replaced the 5.56mm would need to be compatible with the M4 weapon system. The .300 AAC Blackout is compatible with the M4 system since the case was built from the existing 5.56mm cartridge, allowing for the use of the same magazines from the M4, and to full capacity. To convert an M4 rifle to .300 Blackout, the barrel is the only part that needs to be changed.

The noise of the .300 AAC is drastically reduced with the use of subsonic loads and a suppressor. Some describe the resulting noise levels as similar to the Heckler & Koch MP5-SD, which fires 9mm ammunition. Coupled with a bullet about 40% heavier than the 9mm fired from the MP5-SD, and moving nearly 100 feet per second faster, the .300 Blackout dramatically outperforms the previous gold standard.

The max effective range of the .300 Blackout supersonic load is listed at 500 yards, and with the subsonic load, is listed at 220 yards. Muzzle velocity for the supersonic 125 grain FMJ bullet is 2,215 feet per second, and muzzle energy is 1,360 foot pounds. For the subsonic load, muzzle velocity is 1,010 feet per second, and muzzle energy is 498 foot pounds. Downrange, the .300 Blackout is accurate enough to deliver groups smaller than one inch at 100 yards.

The .300 AAC Blackout is a new cartridge with many positives, including its compatibility with the M4 platform. Additionally, it offers increased performance for both supersonic and subsonic applications, clear benefits for military applications. For the civilian market, the cartridge increases the versatility of the AR-15 platform that much more. Also, due to increased bullet performance, hunters can use the .300 Blackout for harvesting medium-sized game animals. If those reasons are not enough, the .300 Blackout – with its fantastic accuracy and controllable recoil – enabled SSG Daniel Horner of the U.S. Army's Marksmanship Unit to use the cartridge to win the USPSA Multi-Gun Nationals in 2011. This round offers a great deal to all kinds of shooters, and without a doubt, has a very bright future.