Menu
Close
Search
Search Log In Help Center
View Cart
Daily Deals
Clearance
Close
Daily Deals
Clearance
My Account
Help Center

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 ammo stocked. 

Shop by Caliber

Shop by Caliber
300 Blackout Subsonic Ammo

300 Blackout Subsonic Ammo
300 Blackout Firearms

300 Blackout Firearms
View as Grid View List View

Items 25-46 of 179

Page
Set Ascending Direction
  1. Wilson Combat .300 AAC Blackout 115 gr Ammo Lehigh Defense Controlled Chaos - 20rds - LA300BLK115CC

    Wilson Combat .300 AAC Blackout 115 gr Ammo Lehigh Defense Controlled Chaos - 20rds - LA300BLK115CC

    Regular Price $58.99 Special Price $51.99 $2.60
    Add to Wish List Add to Compare
  2. Barnes Bullets Precision Match .300 AAC Blackout 220 gr Ammo JHP - 20rds - 32134

    Barnes Bullets Precision Match .300 AAC Blackout 220 gr Ammo JHP - 20rds - 32134

    Regular Price $41.99 Special Price $37.99 $1.90
    Add to Wish List Add to Compare
  3. Fort Scott Munitions Tumble Upon Impact .300 AAC Blackout 115 gr Ammo SCS - 20rds - 300115SCV

    Fort Scott Munitions Tumble Upon Impact .300 AAC Blackout 115 gr Ammo SCS - 20rds - 300115SCV

    Regular Price $38.99 Special Price $34.99 $1.75
    Add to Wish List Add to Compare
  4. Fort Scott Munitions Tumble Upon Impact .300 AAC Blackout 190 gr Ammo SCS - 20rds - 300190SCVSS

    Fort Scott Munitions Tumble Upon Impact .300 AAC Blackout 190 gr Ammo SCS - 20rds - 300190SCVSS

    Rating:
    100%
    (1)
    Regular Price $48.99 Special Price $35.99 $1.80
    Add to Wish List Add to Compare
  5. Remington Core-Lokt .300 AAC Blackout 120 gr Ammo Copper HP - 20rds - R27857

    Remington Core-Lokt .300 AAC Blackout 120 gr Ammo Copper HP - 20rds - R27857

    Rating:
    100%
    (1)
    $35.99 $1.80
    Add to Wish List Add to Compare
  6. Hyperion Munitions Veteran .300 AAC Blackout 150 gr FMJ Ammo, 50rds - HMBX300BLK15050

    Hyperion Munitions Veteran .300 AAC Blackout 150 gr FMJ Ammo, 50rds - HMBX300BLK15050

    Regular Price $36.99 Special Price $32.99 $0.66
    Add to Wish List Add to Compare
  7. Lehigh Defense Maximum Expansion .300 AAC Blackout 194 gr BTHP 20rds Rifle Subsonic Ammo for Subsonic Accuracy - LA300BLK-194-ME

    Lehigh Defense Maximum Expansion .300 AAC Blackout 194 gr BTHP 20rds Rifle Subsonic Ammo for Subsonic Accuracy - LA300BLK-194-ME

    Regular Price $75.99 Special Price $67.99 $3.40
    Add to Wish List Add to Compare
  8. Wilson Combat .300 AAC Blackout 220 gr BTHP 20rds

    Wilson Combat .300 AAC Blackout 220 gr BTHP 20rds

    Rating:
    100%
    (1)
    Regular Price $38.99 Special Price $34.99 $1.75
    Add to Wish List Add to Compare
  9. Lehigh Defense .300 AAC Blackout 110 gr CPTS 20rds

    Lehigh Defense .300 AAC Blackout 110 gr CPTS 20rds

    Regular Price $65.99 Special Price $59.99 $3.00
    Add to Wish List Add to Compare
  10. Hornady Frontier .300 Blackout Subsonic 208 Grain FMJ Ammo, 20Rds - FR410

    Hornady Frontier .300 Blackout Subsonic 208 Grain FMJ Ammo, 20Rds - FR410

    Regular Price $29.99 Special Price $26.99 $1.35
    Add to Wish List Add to Compare
  11. Armscor 300 AAC Blackout 147gr FMJ Ammunition 20rds - FAC300AAC-1N

    Armscor 300 AAC Blackout 147gr FMJ Ammunition 20rds - FAC300AAC-1N

    Rating:
    82%
    (10)
    Out of Stock
    Add to Wish List Add to Compare
  12. Ammo Inc 155 gr BTHP Match .300 Blackout Ammunition 200 Round Ammo Can For Sale

    Ammo Inc 155 gr BTHP Match .300 Blackout Ammunition 200 Round Ammo Can - 300B155BTHP-B200

    Rating:
    95%
    (71)
    Out of Stock
    Add to Wish List Add to Compare
  13. Sellier & Bellot 300 AAC Blkout 124gr FMJ 20rds SB300BLKA

    Sellier & Bellot 300 AAC Blkout 124gr FMJ 20rds SB300BLKA

    Rating:
    91%
    (19)
    Out of Stock
    Add to Wish List Add to Compare
  14. Ammo Inc 150 gr FMJ .300 AAC 200 Round Ammo Can

    Ammo Inc 150 gr FMJ .300 AAC 200 Round Ammo Can - 300B150FMJ-B200

    Rating:
    92%
    (80)
    Out of Stock
    Add to Wish List Add to Compare
  15. Ammo Inc Range Pack .300 Blackout Ammo 150gr FMJ, 200rds

    Ammo Inc Range Pack .300 Blackout Ammo 150gr FMJ, 200rds - 300B150FMJ-A200

    Rating:
    96%
    (135)
    Out of Stock
    Add to Wish List Add to Compare
  16. Armscor 208 gr A-Max 300 Blackout Ammo for sale

    Armscor 208 gr A-Max .300 Blackout Ammo, 20/box - FAC300AAC2N

    Rating:
    100%
    (4)
    Out of Stock
    Add to Wish List Add to Compare
  17. Ammo Inc stelTH 300 Blackout Ammo 220gr TMJ Subsonic, 20rds

    Ammo Inc stelTH 300 Blackout Ammo 220gr TMJ Subsonic, 20rds

    Rating:
    94%
    (49)
    Out of Stock
    Add to Wish List Add to Compare
  18. Fiocchi Range Dynamics .300 Blackout 150gr FMJ Ammo, 50rds - 300BLKC

    Fiocchi Range Dynamics .300 Blackout 150gr FMJ Ammo, 50rds - 300BLKC

    Rating:
    85%
    (21)
    Out of Stock
    Add to Wish List Add to Compare
  19. Sellier & Bellot 300 AAC Blkout 147gr FMJ 20rds SB300BLKB

    Sellier & Bellot 300 AAC Blkout 147gr FMJ 20rds SB300BLKB

    Rating:
    97%
    (24)
    Out of Stock
    Add to Wish List Add to Compare
  20. Remington UMC 300 AAC Blackout Ammo 220 Grain OTFB 60 rds - 24055

    Remington UMC 300 AAC Blackout Ammo 220 Grain OTFB 60 rds - 24055

    Out of Stock
    Add to Wish List Add to Compare
  21. Ammo Inc 300 Blackout Ammo 168 Grain BTHP 20rds

    Ammo Inc 300 Blackout Ammo 168gr BTHP 20rds

    Rating:
    100%
    (4)
    Out of Stock
    Add to Wish List Add to Compare
  22. .300 AAC Ammo

    American Eagle 300 AAC Blackout 220gr OTM Sub-Sonic Ammunition 20rds - AE300BLKSUP2

    Rating:
    90%
    (6)
    Out of Stock
    Add to Wish List Add to Compare
View as Grid View List View

Items 25-46 of 179

Page
Set Ascending Direction
Shop By
Shopping Options
Category
  1. 300 Blackout Subsonic Ammo 43
Stock
Clearance
Round Count
Grain Weight
Barrel Length
Preferred Vendor
Coupon Code
Caliber
Brand
Price
Apply

Can't find your caliber?

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.