300 Blackout Ammo

One of the most popular alternative chamberings for the AR-15 platform, .300 AAC Blackout ammo is easily distinguished by its relatively small case and huge bullet. This somewhat odd-looking cartridge fulfills a number of niches better than the default .223/5.56 caliber with better close-range performance and excellent potential in suppressed firearms.

.300 Blackout ammunition comes in two distinct flavors: subsonic and supersonic. Supersonic loads typically fire a light 90-130 grain bullet at a muzzle velocity of around 2,200 feet per second with ballistics comparable to those of the Russian 7.62x39mm. Subsonic ammo, on the other hand, fires a much heavier bullet in the 220 grain range with a muzzle velocity of around 1,000 feet per second to avoid the sonic "crack" that partially negates the advantages of a suppressor.

The .300 AAC has been embraced for a wide variety of purposes, with hunting, match, and defense loads available from most manufacturers including Nosler, Federal, and Corbon. Notable adaptations of the round include Remington's Hog Hammer series featuring Barnes TSX copper bullets as well as Hornady's Zombie-Max hollow point series for those prepping for the undead apocalypse - you can find a wide variety at cheap prices for sale here at Widener's.

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15 products

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  1. Wolf 300 AAC Blackout 145 Grain FMJ Steel Cased – 500 Rounds

    $269.85

    $244.85

    In stock

    Product Type Ammo
    Manufacturer Wolf
    Condition New
    Bullet Weight 145 Grain
    Bullet Type Full Metal Jacket (FMJ)
    Use Type plinking at the range
    Casing Type Steel
    Quantity 500
    Ammo Caliber 300 AAC Blackout
    Primer Type Berdan
    Magnetic Yes
    UPC Barcode 645611308680
    Cost Per Round 49¢ per round
    The beauty of Russian steel! Wolf’s ammunition features plenty of ferrous metal that will keep your wallet fatter. It’s going to attract a magnet, sure, but it’s going to save you money as well!

    This cartridge is loaded with a 145 grain bullet, which gives a 300 Blackout rifle that supersonic muzzle velocity which simplifies long-distance shooting. The bullet’s copper-washed exterior is only skin deep – beneath it lies a hard, deformation resistant layer of soft steel.

    Wolf’s steel cases aren’t outright impossible to reload. With special equipment and enough time you’ll be able to do it. But is it worth it? No – unless there was absolutely no other way to get 300 Blackout ammo. But while they are effectively non-reloadable, Wolf’s cases do wear PolyFormance polymer coating to protect them from corrosion and smooth out cycling in a semi-auto.

    This ammo’s Berdan primers operate on a slightly different principle than America’s preferred Boxer primer – but they are just as non-corrosive!
  2. Winchester Super Suppressed 300 AAC Blackout 200 Grain Open Tip – 200 Rounds

    $174.95

    $154.85

    In stock

    Product Type Ammo
    Manufacturer Winchester
    Condition New
    Bullet Weight 200 Grain
    Bullet Type Open Tip
    Use Type plinking at the range, Subsonic
    Casing Type Brass
    Quantity 200
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU SUP300BLK
    Primer Type Boxer
    Magnetic No
    UPC Barcode 20892224490
    Cost Per Round 77.4¢ per round
    Is Winchester’s Super Suppressed line of ammunition only meant for suppressed firearms? Not at all! This 300 AAC Blackout ammo will supply cleaner and quieter performance out of suppressed and unsuppressed pistols, carbines and rifles alike!

    Winchester’s clean-burning powder isn’t the only reason for this round’s low-residue performance. The bullet’s base is fully encapsulated, which prevents hot propellant gasses from evaporating any lead off its core. That means virtually zero lead residue will accumulate on your bore or inside your suppressor!

    This round’s quiet report is the work of its bullet. At 200 grains, it simply cannot become supersonic before clearing the muzzle, and accordingly cannot register a jarring supersonic crack on ignition.

    The open tip is often confused for a hunting or self-defense bullet, but it is in fact not capable of terminal expansion. Its nose cavity is just the byproduct of the open tip bullet’s production process. Molten lead is inserted through the aperture so it can cool in place to become form-fitted – a feature which enhances accuracy.

    Winchester’s 300 Blackout ammo is always made in America, where it is loaded with reloadable brass cases and very dependable primers and powder. This ammo is designed to fully cycle all semi-autos.
  3. Sellier & Bellot 300 AAC Blackout 147 Grain FMJ – 500 Rounds

    $449.85

    In stock

    Product Type Ammo
    Manufacturer Sellier & Bellot
    Condition New
    Bullet Weight 147 Grain
    Bullet Type Full Metal Jacket (FMJ)
    Use Type plinking at the range
    Casing Type Brass
    Quantity 500
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU SB300BLKB
    Primer Type Boxer
    Magnetic No
    UPC Barcode R08312016535
    Cost Per Round 90¢ per round
    The 300 AAC Blackout is still a relatively new and exciting cartridge. We’re all still learning our way around it, so we need a lot of good training ammunition until its performance is as old hat as, say, the 223 Rem or 22 LR. If you’re after an affordable cartridge that’ll keep you busy as you train or plink the day away, Sellier & Bellot is poised to fill that order in full with this case of fine ammo.

    This 300 AAC Blackout cartridge has a supersonic muzzle velocity, even with a little bit give or take, distinguishing it from its caliber’s other popular supersonic loads. Sellier & Bellot has jacketed its 147 grain projectile with CuZn 10, a great alloy for such an application because it will greatly lessen the amount of copper fouling your bore is bound to incur. Sellier & Bellot has applied nearly 200 years worth of acquired experience to make sure this round’s bullet, reloadable brass casing, and non-corrosive Boxer primer have been correctly assembled according to tight tolerances. Sit on this case for years or burn through it the day it arrives at your door -- you’ll love its performance either way!
  4. Magtech Subsonic 300 AAC Blackout 200 Grain FMJ – 500 Rounds

    $459.85

    In stock

    Product Type Ammo
    Manufacturer Magtech
    Condition New
    Bullet Weight 200 Grain
    Bullet Type Full Metal Jacket (FMJ)
    Use Type plinking at the range, Subsonic
    Casing Type Brass
    Quantity 500
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU 300BLKSUBA
    Primer Type Boxer
    Magnetic No
    UPC Barcode R110620182987
    Cost Per Round 92¢ per round
    We couldn’t list all the things that there are to love about shooting. Feeling every molecule in your body work together in order to line up a perfect shot, the sheer variety of different firearms that there are to master, that pride of self-sufficiency you feel when you bag a buck and ensure your winter’s chili supply -- picking a favorite is truly impossible.

    While making a loud bang with every trigger pull certainly ranks high on our list of things to love about shooting, it’s not always wanted. Sometimes you want to train where people who don’t like loud bangs are present, and sometimes you’re training a new shooter whose sensitive little ears haven’t yet adjusted to the loud bangs. Whatever your reason for wishing for a low report from your rifle might be, you’ll be glad to know that Magtech has got you covered with this subsonic 300 AAC Blackout cartridge. Because its muzzle velocity is substantially lower than what it would take to break the sound barrier, it issues a far quieter report when fired. When utilized in conjunction with a silencer, it’s positively stealthy!

    This cartridge further offers a reloadable brass casing, a non-corrosive and sure-fire primer, and propellant load optimized to deliver the best performance for its caliber. The round’s 200 grain projectile features a full metal jacket, so it’ll have an easier time penetrating targets and also save your bore from rapid lead fouling that would have taken away from your accuracy with time. Invest in these 500 cartridges and see just why Magtech has come to dominate the ammunition market in so few years after their creation.
  5. Hornady Frontier 300 AAC Blackout 125 Grain FMJ – 20 Rounds

    $18.85

    In stock

    Product Type Ammo
    Manufacturer Hornady
    Condition New
    Bullet Weight 125 Grain
    Bullet Type Full Metal Jacket (FMJ)
    Use Type plinking at the range
    Casing Type Brass
    Quantity 20
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU FR400
    Primer Type Boxer
    Magnetic No
    UPC Barcode 90255713978
    Cost Per Round 94.2¢ per round
    This 300 AAC Blackout cartridge is from Hornady’s Frontier line of ammunition. While Frontier rounds are frequently manufactured at the Lake City Army Ammunition Plant, the United States Army’s relative ambivalence toward the caliber likely contributed to Hornady making this round all by themselves. Still, it evinces through and through the great quality for which Hornady is so revered, and that it has been so painstakingly inspected means it will do wonders for you during your next one-on-one time with your rifle.

    This round’s 125 grain projectile has a full metal jacket, so it’ll function positively in any semi-automatic firearm and preserve accuracy as you shoot. The round’s factory fresh brass casing is sturdy yet supple enough at the neck and shoulder for repeated handloading, and the non-corrosive primer won’t cake your weapon’s sensitive action with residues that would treat it like lunch. Its carefully measured propellant is similarly clean burning as well!
  6. Winchester Super Suppressed 300 AAC Blackout 200 Grain Open Tip – 20 Rounds

    $18.85

    In stock

    Product Type Ammo
    Manufacturer Winchester
    Condition New
    Bullet Weight 200 Grain
    Bullet Type Open Tip
    Use Type plinking at the range, Subsonic
    Casing Type Brass
    Quantity 20
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU SUP300BLK
    Primer Type Boxer
    Magnetic No
    UPC Barcode 20892224483
    Cost Per Round 94.2¢ per round
    Super Suppressed ammunition is perfect for any rifle with a suppressor screwed onto the end of its barrel. This 300 AAC Blackout ammo won’t just keep all those baffles a whole lot cleaner – it will also make your suppressor itself more effective at its job!

    Winchester loads this round with their open tip range projectile. First things first: The open tip will not expand as it penetrates soft tissue, and in fact delivers terminal ballistics akin to an FMJ. It is an accuracy-first bullet, with a form-fitting core that was poured through the opening in its jacket’s tip while it was still molten.

    This bullet’s flat base promotes accuracy by offering a uniform surface for propellant gas to thrust against. The jacketed base also locks propellant gas away from the core, thus stopping it from vaporizing lead that would accumulate inside the barrel and suppressor.

    A Super Suppressed cartridge relies on a simple mechanism to ensure its subsonic muzzle velocity: a heavy bullet. At 200 grains the open tip range bullet cannot issue a cracking report upon exiting the barrel, which makes a rifle run quieter even if it hasn’t got a suppressor.

    Brass cases and non-corrosive primers also help this ammo fire up clean. Reloadable and American-made!
  7. Federal American Eagle 300 AAC Blackout 150 Grain FMJ - 500 Rounds

    $493.85

    In stock

    Product Type Ammo
    Manufacturer Federal
    Brand American Eagle
    Condition New
    Bullet Weight 150 Grain
    Bullet Type Full Metal Jacket (FMJ)
    Use Type plinking at the range
    Casing Type Brass
    Quantity 500
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU AE300BLK1
    Primer Type Boxer
    Magnetic No
    UPC Barcode 50004544617002
    Cost Per Round 98.8¢ per round

    Although it hasn't been around for too long, the 300 AAC Blackout has quickly become a popular round among shooters who are tired of the measly performance of the typical AR-15 rounds, the 223 Rem and 5.56mm. With this new round, you have increased range, more energy, and better ballistics, making it fantastic hunting, self defense, match shooting, and plinking around with only a few modifications to the rifle.

    Federal has been making some of the best ammunition in America since their beginnings in the 1920's and continue to make some of America's favorite ammunition due to their amazing manufacturing and often highly affordable prices. With these Federal American Eagle, 150 grain, full metal jacket, boxer primed, brass cased rounds, you get all the accuracy and reliability you need to have a blast practicing at the range. Firing at 1900 feet per second, these range rounds come at a great price, helping you save money while you get better at shooting.

  8. Sellier & Bellot 300 AAC Blackout 124 Grain FMJ - 20 Rounds

    $19.85

    In stock

    Product Type Ammo
    Manufacturer Sellier & Bellot
    Condition New
    Bullet Weight 124 Grain
    Bullet Type Full Metal Jacket (FMJ)
    Use Type plinking at the range
    Casing Type Brass
    Quantity 20
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU SB300BLKA
    Primer Type Boxer
    Magnetic No
    UPC Barcode 754908512447
    Cost Per Round 99.2¢ per round

    Grab a few boxes of this affordable .300 AAC Blackout ammunition from Sellier & Bellot for your appropriately chambered AR and enjoy some quality time at the range. While it achieves supersonic velocities and will not take full advantage of the noise dampening potential of a suppressor, this ammo can be used with both suppressed and non-suppressed builds.

    Each cartridge in this box of 20 fires a 124-grain full metal jacket bullet at 2,165 feet per second out of the muzzle. This results in good medium-range performance and flatter trajectories than those possible with subsonic loads.

    Sellier & Bellot is a Czech manufacturer established in the early 1800s to supply what was then the Austrian Empire with ammunition. S&B ammo uses non-corrosive Boxer primers and reloadable brass cases. The company is part of CBC, which also produces Magtech in Brazil and MEN ammo in Germany.

  9. Federal American Eagle 300 AAC Blackout 150 Grain FMJBT – 20 Rounds

    $21.00

    In stock

    Product Type Ammo
    Manufacturer Federal
    Brand American Eagle
    Condition New
    Bullet Weight 150 Grain
    Bullet Type Full Metal Jacket Boat Tail (FMJ-BT)
    Use Type plinking at the range
    Casing Type Brass
    Quantity 20
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU AE300BLK1
    Primer Type Boxer
    Magnetic No
    UPC Barcode 604544617009
    Cost Per Round $1.05 per round
    Give this 300 AAC Blackout ammo from Federal’s American Eagle label a shot! Its 150 grain projectile has got a full metal jacket for a cleaner bore at the end of the day, and it’s also got a boat tail that raises its ballistic coefficient for better wind drift resistance, a flatter trajectory, and greater downrange velocity. Federal’s brand new brass casing will afford you multiple opportunities to handload, and their consistent primers will have each hammer stroke producing the exact same result with every shot.

    American Eagle is quality stuff, but it’s priced to let you focus on the damage you’re doing to your target rather than that which you’re doing to your savings. Once you’ve given these 20 rounds the college try and experienced firsthand just how good they are, come on back to Wideners.com for a whole case of them -- your wallet and your rifle will love you for it.
  10. Hornady Frontier 300 AAC Blackout 208 Grain FMJ – 20 Rounds

    $24.85

    In stock

    Product Type Ammo
    Manufacturer Hornady
    Condition New
    Bullet Weight 208 Grain
    Bullet Type Full Metal Jacket (FMJ)
    Use Type plinking at the range
    Casing Type Brass
    Quantity 20
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU FR410
    Primer Type Boxer
    Magnetic No
    UPC Barcode 090255729511
    Cost Per Round $1.24 per round
    Are you currently suffering from a case of the jimblies? And by “jimblies,” we mean severe lack of subsonic 300 AAC Blackout target ammunition? Then the cure is close at hand. We’re offering you Hornady Frontier!

    This cartridge’s bullet is too heavy to pose any risk of breaking the sound barrier. It’s what’s scientifically referred to as a “big boy” – a heaving 208 grains, which attains muzzle velocity 100 fps shy of supersonic when it is fired out of Hornady’s 24” test barrel. You could ask for no better if you’re trying to see what your suppressor can really do!

    And you won’t have to turn your pockets inside out in order to observe such subsonic performance. Hornady outfits this target puncher with a full metal jacket, which isn’t engineered for expansion, or particularly deep penetration at that. (We’re quite sure you could make good use of this ammo’s FMJs for varmint hunting, though.)

    This ammo’s high-quality bullets, reloadable brass cases, and clean-burning explosives all prove that Nebraskans know what’s what. Order as many boxes as you like, because our boss told us we can’t keep whatever we don’t wind up selling! He also told us not to microwave fish in the company breakroom! So much for “Trout Thursday!”
  11. Winchester Deer Season XP 300 AAC Blackout 150 Grain Polymer Tipped - 20 Rounds

    $25.85

    In stock

    Product Type Ammo
    Manufacturer Winchester
    Condition New
    Bullet Weight 150 Grain
    Bullet Type Polymer Tipped
    Use Type hunting whitetail deer
    Casing Type Brass
    Quantity 20
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU X300BLKDS
    Primer Type Boxer
    UPC Barcode 020892222670
    Cost Per Round $1.29 per round

    The 300 AAC Blackout is a newer round that was designed to bring the benefits of a 30 caliber projectile to the AR-15 platform while using the same lower receiver and magazines as 223 Rem/ 5.56 NATO rifles. With this new round, you have increased energy and efficacy, making it great for hunting, match competing, and self defense applications.

    When you are looking for high quality, reliable ammo, Winchester is the way to go. Since 1866, Winchester has been producing ammunition and has helped develop many of the calibers we use and trust today.

    Firing at 1900 feet per second, these Winchester Deer Season XP rounds utilize 150 grain polymer tipped bullets that are designed to deliver rapid yet controlled expansion for quick and humane drops. Each projectiles is loaded into a boxer primed brass case that is reloadable.

  12. Hornady BLACK 300 AAC Blackout 208 Grain ELD Match – 200 Rounds

    $289.85

    In stock

    Product Type Ammo
    Manufacturer Hornady
    Condition New
    Bullet Weight 208 Grain
    Bullet Type ELD Match
    Use Type match or precision shooting, plinking at the range, Subsonic
    Casing Type Brass
    Quantity 200
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU 80891
    Primer Type Boxer
    Magnetic No
    UPC Barcode 10090255808916
    Cost Per Round $1.45 per round
    Hornady’s BLACK line of ammunition is designed to provide seamless functionality in any firearm – but this 300 AAC Blackout round’s ELD Match has a very specific application. It’s all about the accuracy, baby.

    Every molecule of the ELD Match works toward creating the most consistent trajectory possible. Its polymer tip is ballsitically efficient and centered. Its secant ogive profile stirs up incredibly little drag, and its boat tail further enhances its ability to retain momentum downrange. The ELD Match’s AMP jacket and swaged lead core both ensure exceptional rotational stability. And because this round’s bullet is extremely heavy at 208 grains, it boasts the superior inertia it needs to treat wind drift like it’s nothing. The culmination of all these features? A 0.648 G1 ballistic coefficient .30 cal match grade bullet!

    The ELD Match will send any varmint to an early grave, but don’t let its polymer tip fool you This bullet cannot expand, which makes its terminal ballistics more or less equivalent to those of an FMJ or HPBT. It’s not suitable for hunting whitetail, and it’s really no better for home defense than any run of the mill range load.

    Hornady makes certain their customers can truly appreciate the ELD Match’s outstanding precision by loading their BLACK series ammo with premium brass, propellant and primers. Made in the Cornhusker State!
  13. Hornady Subsonic 300 AAC Blackout 190 Grain Sub-X - 200 Rounds

    $313.85

    $299.85

    In stock

    Product Type Ammo
    Manufacturer Hornady
    Condition New
    Bullet Weight 190 Grain
    Bullet Type Polymer Tipped
    Use Type home defense, Subsonic
    Casing Type Brass
    Quantity 200
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU 80877
    Primer Type Boxer
    Magnetic No
    UPC Barcode 10090255808770
    Cost Per Round $1.5 per round
    Hornady's Subsonic 300 AAC Blackout ammo provides excellent terminal performance without the noise and recoil of comparable self-defense rounds. These low-velocity cartridges expand predictably at varying speeds due to the design of the 190 grain Sub-X bullets. Crimped into the mouth of each Boxer-primed brass casing, the Sub-X features a flat polymer Flex-Tip that protects the cavity of the hollow point. On impact, the Flex Tip dissipates as the copper jacket curls back over the soft lead core to create devastating wound paths.

    Shooters with a desire to reload spent casings can reuse the new brass. The brass casings are non-corrosive and filled with clean-igniting powders that help reduce caustic buildup in your barrel.

    Hornady ammunition is American-made and the top choice for many shooters. Order your 200-round bulk case today!

    Customer Reviews

    Might not feed in your AR mags

    I tried this ammo in five different kinds of AR magazines. Failure to feed was a major issue with all of them in my rifle. I suggest trying them in your application before committing to a large order.

    Review by Joe Blow (Posted on 11/16/2019)

  14. Hornady Subsonic 300 AAC Blackout 190 Grain Sub-X – 20 Rounds

    $31.85

    In stock

    Product Type Ammo
    Manufacturer Hornady
    Condition New
    Bullet Weight 190 Grain
    Bullet Type Polymer Tipped
    Use Type home defense, Subsonic
    Casing Type Brass
    Quantity 20
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU 80877
    Primer Type Boxer
    Magnetic No
    UPC Barcode 90255808773
    Cost Per Round $1.59 per round
    This 300 AAC Blackout round by Hornady has a muzzle velocity of only 1,050 fps. That’s nowhere near what it would take to break the sound barrier, and accordingly very quiet -- especially so if your weapon is outfitted with a silencer. Still, this round is optimal for self-defense, because it features Hornady’s 190 grain Sub-X projectile.

    The Sub-X sports Hornady’s Flex Tip, a post made of soft polymer nestled on the rim of the jacket and which projects downward into a precisely formed cavity within the core. Upon impact the Flex Tip builds up tremendous energy before it connects with the core, at which point it causes the bullet to mushroom outward devastatingly.

    As a cartridge for self-defense, this round is cleverly loaded with temperature stable propellant that has been formulated to reduce muzzle flash upon ignition. That will preserve your vision if you ever have to engage a threat in the nighttime. In spite of its lesser muzzle velocity, this round still meets FBI protocol by penetrating up to 18” with 90 percent or greater weight retention in ballistic gel. This round will not part with its efficacy when fired in a shorter barreled rifle.
  15. Hornady Custom 300 AAC Blackout 135 Grain FTX – 200 Rounds

    $329.85

    In stock

    Product Type Ammo
    Manufacturer Hornady
    Condition New
    Bullet Weight 135 Grain
    Bullet Type Flex-Tip-Technology (FTX)
    Use Type home defense, hunting boar, hunting whitetail deer, varmint hunting
    Casing Type Brass
    Quantity 200
    Ammo Caliber 300 AAC Blackout
    Manufacturer SKU 80881
    Primer Type Boxer
    Magnetic No
    UPC Barcode 10090255808817
    Cost Per Round $1.65 per round
    This is a versatile 300 AAC Blackout round from Hornady’s Custom line of ammunition. With its 135 grain FTX bullet it promises both the accuracy and the terminal performance you need not only to hunt deer and coyote, but also to keep your homestead devoid of people who covet the treasures you’ve stored there.

    The FTX features Hornady’s proprietary Flex Tip, a soft polymer spike which enhances the bullet’s ballistic coefficient and also initiates massive expansion beginning at the moment of impact. As the Flex Tip forces its way downward, Hornady’s InterLock ring keeps the bullet’s high antimony lead core and heavy jacket bound together to promote a wound channel that will extend to the vitals. The FTX also features a secant ogive profile that greatly improves its accuracy.

    The motivation behind Custom ammo is to give shooters quality like they might otherwise only have experienced from a handload. These rounds utilize casings and primers that a discerning handloader would also choose for the job, and are inspected by masters of their craft.

15 products

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