5.56x45 Ammo For Sale
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Hornady Frontier 5.56x45 Ammo - 20 Rounds of 55 Grain HP Match Ammunition
$14.99119 In stock now
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Igman 5.56x45 Ammo - 20 Rounds of 55 Grain FMJ M193 Ammunition
$14.99141 In stock now
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Hornady Frontier 5.56x45 Ammo - 20 Rounds of 62 Grain FMJ Ammunition
$17.9939 In stock now
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Hornady BLACK 5.56x45 Ammo - 200 Rounds of 62 Grain FMJ Ammunition
$189.9989 In stock now
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5.56x45 - 62 Grain FMJ - Hornady BLACK - 20 Rounds
$19.9919 In stock now
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Black Hills Ammunition 5.56x45 Ammo - 50 Rounds of 69 Grain OTM Ammunition
$73.9912 In stock now
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Barnes Precision Match 5.56x45 Ammo - 20 Rounds of 69 Grain OTM Ammunition
$35.997 In stock now
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Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 62 Grain TSX Ammunition
$949.995 In stock now
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Black Hills Ammunition 5.56 Ammo - 50 Rounds of 62 Grain Barnes TSX Ammunition
$97.9980 In stock now
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Black Hills Ammunition 5.56x45 Ammo - 500 Rounds of 62 Grain Dual Performance Ammunition
$999.991 In stock now
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Black Hills Ammunition 5.56x45 Ammo - 50 Rounds of 62 Grain Dual Performance Ammunition
$103.9925 In stock now
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Overview of 5.56x45 Ammo
Eugene Stoner developed the 5.56 NATO in the 1950s for the AR-15 platform, officially adopted by the U.S. Military in 1963 as the standard infantry cartridge. Its lightweight, high-velocity rounds allowed soldiers to carry more ammo without sacrificing effective range or accuracy.
Today, it's one of the most popular cartridges because of its low recoil, cost, and excellent accuracy, even in the hands of a relatively new shooter.
During the Cold War, the Soviet Union developed their own lightweight intermediate cartridge in response to the 5.56 NATO. The 5.45x39mm was designed with similar goals in mind: reduced recoil, higher capacity, and improved accuracy.
What are the most popular 5.56x45 brands you sell?
You can filter our entire selection using the left sidebar to see which brands we currently have in-stock and available using the Manufacturers filter. You can also filter by attributes such as Bullet Type, Bullet Weight, Casing Type, and Primer Type to find what you need.
Popular 5.56x45 Ammo Options
Best 5.56x45 Ammo for Specific Uses
| Use Case | Details |
|---|---|
| Best 5.56 Ammo For Home Defense | Best Overall: Black Hills 5.56x45 62 Grain Dual Performance. Runner-Up: Hornady Black 5.56 62 Grain. |
| Best 5.56 Coyote Ammo | Best Overall: Hornady Superformance Varmint 53 Grain V-MAX. Runner-up: Hornady Superformance 55 Grain CX. |
For range training and high-volume plinking, Winchester USA 5.56 (commonly called "White Box") offers dependable performance at a budget-friendly price. This brass-cased training ammunition has earned a reputation for reliability and reasonable accuracy, making it a go-to choice for AR-15 owners who shoot regularly. Read our Winchester 5.56 White Box review for detailed testing results and performance data from the range. If you buy training ammo by the case, our 5.56 price history shows how the cheapest rounds have moved month by month since 2009.
You can also check out our in-depth look at 5.56 NATO ballistics from all of the popular ammo manufacturers if you're in search of ballistics data for your favorite factory 5.56 NATO load.
For more details on choosing the best grain for 5.56 ammunition based on your shooting needs, check out our comprehensive guide to help you select the ideal bullet weight for your 5.56 rifle.
How Does The 5.56 Compare To Other Calibers?
| 5.56 vs. | Recoil | Pros | Cons |
|---|---|---|---|
| 223 Remington | Nearly identical | 223 can be fired in 5.56 chambers (not vice versa), slightly higher pressure for better performance | 5.56 ammo is sometimes slightly more expensive |
| 277 Fury | 5.56 has less | 5.56 has less recoil, cheaper ammo, and better availability | 5.56 has less stopping power and shorter effective range |
| 300 Blackout | 5.56 has less | 5.56 has flatter trajectory, higher velocity, and less expensive ammo | 5.56 has less stopping power at close range and isn't suppressor-optimized |
| 308 Winchester | 5.56 has less | 5.56 has less recoil, cheaper ammo, lighter rifles, and higher capacity | 5.56 has less stopping power and shorter effective range |
| 30-06 Springfield | 5.56 has significantly less | 5.56 has minimal recoil, lighter rifles, cheaper ammo, and higher capacity | 5.56 has substantially less stopping power and limited hunting effectiveness on large game |
| 30 Carbine | 5.56 has slightly more | 5.56 has better ballistics, flatter trajectory, and more modern bullet designs | 5.56 has slightly more recoil and more expensive ammo |
| 350 Legend | 5.56 has less | 5.56 has less recoil, flatter trajectory, and better long-range accuracy | 5.56 has less stopping power for deer hunting |
| 458 SOCOM | 5.56 has significantly less | 5.56 has less recoil, flatter trajectory, cheaper ammo, and better availability | 5.56 has less stopping power and limited effectiveness on large game |
| 50 Beowulf | 5.56 has significantly less | 5.56 has minimal recoil, flatter trajectory, cheaper ammo, and better availability | 5.56 has substantially less stopping power and poor performance on large game |
| 5.45x39 | Nearly identical | 5.56 has better availability in the US and more bullet variety | 5.56 ammo is generally more expensive |
| 5.7x28 | 5.56 has more | 5.56 has significantly more stopping power and better effective range | 5.56 has more recoil and requires larger rifle platforms |
| 6mm ARC | 5.56 has less | 5.56 has less recoil, cheaper ammo, longer barrel life, and better availability | 5.56 has steeper trajectory, less stopping power, and worse long-range performance beyond 300 yards |
| 6.5 Grendel | 5.56 has less | 5.56 has less recoil, cheaper ammo, and better availability | 5.56 has steeper trajectory, less stopping power, and worse performance for medium game hunting |
| 6.8 SPC | 5.56 has less | 5.56 has less recoil, cheaper ammo, and better availability | 5.56 has steeper trajectory and less stopping power |
| 7.62x39 | 5.56 has less | 5.56 has flatter trajectory, better long-range accuracy, and more available ammo types | 5.56 has less stopping power at close range |
| 9mm | 5.56 has more | 5.56 has much higher velocity, better range, and superior ballistics | 5.56 has more recoil, more expensive ammo, and requires rifle platforms |
Customer Reviews
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Bear Patrol said:
Ammo comes in 5 plastic mini ammo boxes that look really neat! I wish the carry handles were real but they’re still worth holding onto for future use. So far I’ve put about 360 of these through my Windham HBC with no issues. As for accuracy I’ve only fired at targets from 100 yards or less from a standing position, so I’m not sure how they do at longer ranges but they always hit where I aim at those distances. The only downside for me so far is that I have to use paper targets or improvised targets (milk jugs, cans, etc.) Because these were leaving some SERIOUS dents in my 1/2 inch thick ar500 steel target. Overall I’d definitely recommend these to someone looking for decent 5.56 ammo at a good price.
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Jetson said:
Goes bang, burns clean, shoots straight no ftf’s or any other issues. I’d trust my life to it. Gonna get more.
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Christian said:
Shot 100 rounds through my new AR-15 and everything was flawless. Very happy with the service, delivery time and quality of the Ammo.
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Capt AR said:
Spent 30 rounds @ 100 yrs.Fired prefect and only a couple off Mark.
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Cameron said:
Great shipping shoot fine at 100 yards could drill dime every shot
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Gabe said:
I was looking for inexpensive practice ammo,and this was a good deal all around. Ammo was a good price relative to the times.Checkout was easy. Ammo was delivered quickly. Only had time for a100 rounds , no problems. Really like getting the ammo can too.
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Matthew said:
Ammo was inexpensive and dependable. Shipping was on time. Would definitely recommend.
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michael said:
Ok
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Chris said:
I bought 500 rounds of the 556 FMJ out of the first few boxes (60 rounds) 11 have failed to fire. Firing pin struck the bullet but no boom. Will not be purchasing again.
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Robert B said:
This Ammo shoots well, However when trying to reload the brass I broke 2 decapping pins in my sizing die. I cut the head off two cases and found the flash hole is off center. So even though the ammo shoots well it cannot be reloaded.
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Jamms said:
Price was pretty good. But constant jamming and feeding issues in all 3 of our weapons. Casings seem soft. Not sure about that though. They did stay in decent groupings on the target at 50 yards. Oh and the damn boxes all came apart, had to just dump em all into a bucket. Frustrating because I like to just take one or two boxes to the range. But anyway.
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Signman said:
Jammed every other round. Very disappointed.
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JRL said:
I got 1000 rounds of this. Just shot it today and it consistently chronos 100fps slower than advertised. NOT HAPPY AT ALL. Order another brand if you want full power ammo.
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Private citizen said:
This is a great self defense ammo at a great price.
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Bru said:
It's Hornady Black. Goes down range well, gives decent groups at 50 & 100 Yards through a Hellion. It's not Match grade but it is consistent for my usage. Good prices and quick shipping is always a bonus too! Thanks Ammo.com
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Ernest said:
Great price good rounds straight A across the board
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edward said:
We fired over 300 rds on the range from 15 to 100 yards. The Black Hills 556 and 223 is absolutely the finest rifle ammo our agency ever used. It will save your life if ever in a gun battle with bad guys.