300 AAC BLACKOUT

300 Blackout ammo was developed by Advanced Armament Corporation and Remington Defense in 2010 and standardized by the Sporting Arms and Ammunition Manufacturers Institute (SAAMI) in 2011, the 300 AAC Blackout (also known as 300 BLK or 7.63x35mm) is a relatively young cartridge, but one that is rapidly gaining in popularity.

The 300 BLK was developed around a long list of design parameters intended to allow the use of .30 caliber projectiles in the AR/M4 platform. Chief among them, the cartridge had to feed reliably from standard 30 round magazines and utilize their full capacity, which previous attempts with the 7.62x39 cartridge (used in the AK-47) failed to do. Other requirements included the ability to operate suppressed or unsuppressed in a short, lightweight configuration.

The propellants used in 300 BLK cartridges tend to be much faster burning than typical rifle powders, meaning the 300 BLK is well suited to pistol-length gas systems and suffers relatively little in the way of velocity when fired from short barrels. This makes the 300 BLK an ideal choice for AR-style pistols or short-barreled rifles. Learn a lot more about what 300 BLK can do in our 300 Blackout Ballistics Guide.

The cartridge uses a shortened 221 Fireball or .223 Remington case, shortened to 35mm with the new case mouth necked down to .308 caliber. Bullet weights for the 300 BLK range from 110 grain to 250grain, with lighter projectiles suited to maximum velocity while the heavier bullets are used for subsonic work and maintain high energy despite limited velocity.

Ballistically, the 300 BLK performs much like the 7.62x39mm cartridge, with a shorter effective range than 5.56x45mm NATO, but with more kinetic energy than the latter. Because of these characteristics, the 300 BLK is well suited to close range combat and for hunters wishing to use the AR platform.

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1 - 20 of 39

  1. 200rds – 300 AAC Blackout Winchester USA 147gr. FMJ Ammo 200rds – 300 AAC Blackout Winchester USA 147gr. FMJ Ammo
    $159.95
    $0.8/ppr

    36 In Stock

    Bullet type
    Full Metal Jacket (FMJ)
    Muzzle Energy
    1203
    Casing Type
    Brass
    Muzzle Velocity
    1920
    Primer Type
    Boxer
    Bullet Weight
    147 Grain
  2. 300 AAC Blackout - 124 Grain FMJ - Sellier & Bellot - 500 Rounds 300 AAC Blackout - 124 Grain FMJ - Sellier & Bellot - 500 Rounds
    $399.95
    $0.8/ppr

    45 In Stock

    Bullet type
    Full Metal Jacket (FMJ)
    Muzzle Energy
    1285
    Casing Type
    Brass
    Muzzle Velocity
    2165
    Primer Type
    Boxer
    Bullet Weight
    124 Grain
    Ballistic Data Available
  3. 1000rds – 300 AAC Blackout Prvi Partizan 125gr. FMJ Ammo 1000rds – 300 AAC Blackout Prvi Partizan 125gr. FMJ Ammo
    $824.95
    $0.82/ppr

    7 In Stock

    Bullet type
    Full Metal Jacket (FMJ)
    Muzzle Energy
    1340
    Casing Type
    Brass
    Muzzle Velocity
    2198
    Primer Type
    Boxer
    Bullet Weight
    125 Grain
    Ballistic Data Available
  4. 200rds – 300 AAC Blackout Winchester USA 125gr. Open Tip Ammo 200rds – 300 AAC Blackout Winchester USA 125gr. Open Tip Ammo
    $169.95
    $0.85/ppr

    28 In Stock

    Bullet type
    Open Tip
    Muzzle Energy
    1325
    Casing Type
    Brass
    Muzzle Velocity
    2185
    Primer Type
    Boxer
    Bullet Weight
    125 Grain
  5. 200rds – 300 AAC Blackout Ammo Inc. 110gr. V-MAX Ammo 200rds – 300 AAC Blackout Ammo Inc. 110gr. V-MAX Ammo
    $174.95
    $0.87/ppr

    17 In Stock

    Bullet type
    V-MAX
    Muzzle Energy
    1407
    Casing Type
    Brass
    Muzzle Velocity
    2400
    Primer Type
    Boxer
    Bullet Weight
    110 Grain
  6. 20rds – 300 AAC Blackout Ammo Inc. 150gr. FMJ Ammo 20rds – 300 AAC Blackout Ammo Inc. 150gr. FMJ Ammo
    $17.95
    $0.9/ppr

    ☆☆☆☆☆ 1 Review

    189 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket (FMJ)
    Muzzle Energy
    1140
    Casing Type
    Brass
    Muzzle Velocity
    1850
    Primer Type
    Boxer
    Bullet Weight
    150 Grain
  7. 500rds - 300 AAC Blackout Federal American Eagle 150gr. FMJ Ammo 500rds - 300 AAC Blackout Federal American Eagle 150gr. FMJ Ammo
    $449.95
    $0.9/ppr

    47 In Stock

    Bullet type
    Full Metal Jacket (FMJ)
    Casing Type
    Brass
    Muzzle Velocity
    1900
    Primer Type
    Boxer
    Bullet Weight
    150 Grain
  8. 200rds – 300 AAC Blackout Winchester Subsonic 200gr. Open Tip Ammo 200rds – 300 AAC Blackout Winchester Subsonic 200gr. Open Tip Ammo
    $184.95
    $0.92/ppr

    34 In Stock

    Bullet type
    Open Tip
    Muzzle Energy
    499
    Casing Type
    Brass
    Muzzle Velocity
    1060
    Primer Type
    Boxer
    Bullet Weight
    200 Grain
  9. 200rds – 300 AAC Blackout Ammo Inc. stelTH 220gr. TMJ Ammo 200rds – 300 AAC Blackout Ammo Inc. stelTH 220gr. TMJ Ammo
    $184.95
    $0.92/ppr

    33 In Stock

    Bullet type
    Total Metal Jacket (TMJ)
    Muzzle Energy
    560
    Casing Type
    Brass
    Muzzle Velocity
    1071
    Primer Type
    Boxer
    Bullet Weight
    220 Grain
  10. 200rds – 300 AAC Blackout Hornady Frontier 125gr. FMJ Ammo 200rds – 300 AAC Blackout Hornady Frontier 125gr. FMJ Ammo
    $194.95
    $0.97/ppr

    25 In Stock

    Bullet type
    Full Metal Jacket (FMJ)
    Muzzle Energy
    1313
    Casing Type
    Brass
    Muzzle Velocity
    2175
    Primer Type
    Boxer
    Bullet Weight
    125 Grain
  11. 200rds – 300 AAC Blackout Winchester Super Suppressed 200gr. Open Tip Ammo 200rds – 300 AAC Blackout Winchester Super Suppressed 200gr. Open Tip Ammo
    $194.95
    $0.97/ppr

    30 In Stock

    Bullet type
    Open Tip
    Muzzle Energy
    499
    Casing Type
    Brass
    Muzzle Velocity
    1060
    Primer Type
    Boxer
    Bullet Weight
    200 Grain
  12. 20rds – 300 AAC Blackout Sellier & Bellot 124gr. FMJ Ammo 20rds – 300 AAC Blackout Sellier & Bellot 124gr. FMJ Ammo
    $19.95
    $1/ppr

    131 In Stock

    Bullet type
    Full Metal Jacket (FMJ)
    Muzzle Energy
    1290
    Casing Type
    Brass
    Muzzle Velocity
    2165
    Primer Type
    Boxer
    Bullet Weight
    124 Grain
    Ballistic Data Available
  13. 20rds – 300 AAC Blackout Winchester USA 125gr. Open Tip Ammo 20rds – 300 AAC Blackout Winchester USA 125gr. Open Tip Ammo
    $19.95
    $1/ppr

    84 In Stock

    Bullet type
    Open Tip
    Muzzle Energy
    1325
    Casing Type
    Brass
    Muzzle Velocity
    2185
    Primer Type
    Boxer
    Bullet Weight
    125 Grain
  14. 20rds – 300 AAC Blackout Ammo Inc. stelTH 220gr. TMJ Ammo 20rds – 300 AAC Blackout Ammo Inc. stelTH 220gr. TMJ Ammo
    $19.95
    $1/ppr

    56 In Stock

    Bullet type
    Total Metal Jacket (TMJ)
    Muzzle Energy
    560
    Casing Type
    Brass
    Muzzle Velocity
    1071
    Primer Type
    Boxer
    Bullet Weight
    220 Grain
  15. 500rds – 300 AAC Blackout Federal American Eagle 220gr. OTM Subsonic Ammo 500rds – 300 AAC Blackout Federal American Eagle 220gr. OTM Subsonic Ammo

    $594.95

    $529.95

    $1.06/ppr

    26 In Stock

    Bullet type
    Open Tip Match
    Muzzle Energy
    488
    Casing Type
    Brass
    Muzzle Velocity
    1000
    Primer Type
    Boxer
    Bullet Weight
    220 Grain
    Ballistic Data Available
  16. 20rds – 300 AAC Blackout Winchester Subsonic 200gr. Open Tip Ammo 20rds – 300 AAC Blackout Winchester Subsonic 200gr. Open Tip Ammo
    $21.95
    $1.1/ppr

    89 In Stock

    Bullet type
    Open Tip
    Muzzle Energy
    499
    Casing Type
    Brass
    Muzzle Velocity
    1060
    Primer Type
    Boxer
    Bullet Weight
    200 Grain
  17. 500rds – 300 AAC Blackout Hornady American Gunner 125gr. HP Ammo 500rds – 300 AAC Blackout Hornady American Gunner 125gr. HP Ammo
    $594.95
    $1.19/ppr

    1 In Stock

    Bullet type
    Hollow Point
    Muzzle Energy
    1313
    Casing Type
    Brass
    Muzzle Velocity
    2175
    Primer Type
    Boxer
    Bullet Weight
    125 Grain
  18. 20rds – 300 AAC Blackout Winchester USA Ready 125gr. OT Ammo 20rds – 300 AAC Blackout Winchester USA Ready 125gr. OT Ammo
    $23.95
    $1.20/ppr

    153 In Stock

    Bullet type
    Open Tip
    Muzzle Energy
    1325
    Casing Type
    Brass
    Muzzle Velocity
    2185
    Primer Type
    Boxer
    Bullet Weight
    125 Grain
  19. 20rds – 300 AAC Blackout Winchester Super Suppressed 200gr. Open Tip Ammo 20rds – 300 AAC Blackout Winchester Super Suppressed 200gr. Open Tip Ammo
    $23.95
    $1.2/ppr

    102 In Stock

    Bullet type
    Open Tip
    Muzzle Energy
    499
    Casing Type
    Brass
    Muzzle Velocity
    1060
    Primer Type
    Boxer
    Bullet Weight
    200 Grain
  20. 20rds – 300 AAC Blackout Federal American Eagle Suppressor Subsonic 220gr. OTM Ammo 20rds – 300 AAC Blackout Federal American Eagle Suppressor Subsonic 220gr. OTM Ammo
    $24.45
    $1.22/ppr

    ☆☆☆☆☆ 1 Review

    148 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Open Tip Match
    Muzzle Energy
    488
    Casing Type
    Brass
    Muzzle Velocity
    1000
    Primer Type
    Boxer
    Bullet Weight
    220 Grain
    Ballistic Data Available

1 - 20 of 39

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