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.223 / 5.56

223 Remington ammunition and 5.56x45 NATO rounds are among the popular cartridges for American civilian shooters. Both are light-weight cartridges with relatively low recoil and a ton of muzzle velocity, making them easy on the rifleman to fire consistently and quickly.

223 ammunition is the most popular rifle caliber in terms of rounds sold in the United States today. Commonly paired with the AR-15 Armalite rifle, these rounds a capable for defense but most commonly used by recreational sport shooters who like the flexibility the very fast, light-weight bullet provides. You can expect muzzle velocities in the neighborhood of 3,000 feet per second with most rounds along with a muzzle energy rating that's around 1,300 foot pounds.

Look for a wide assortment of in-stock 223 ammo along with 5.56 with bullet weights primarily in either 55-grain or 62-grain. We carry both bulk full metal jacket loaded rounds, like these from PMC and hollow point bullets that are better suited for hunting or competition shooting, like these match-grade rounds from Fiocchi. All of our 223 ammo for sale is in-stock with fast shipping.

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21 - 40 of 161

  1. 50rds – 5.56x45 CBC 55gr. FMJ M193 Ammo 50rds – 5.56x45 CBC 55gr. FMJ M193 Ammo
    $24.95
    $0.5/ppr

    131 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1302     Casing Type
    Brass     Muzzle Velocity
    3265     Primer Type
    Boxer     Bullet Weight
    55 Grain
  2. 500rds - .223 Hornady Brass Training 55gr. FMJ Ammo 500rds - .223 Hornady Brass Training 55gr. FMJ Ammo
    $249.95
    $0.5/ppr
    • Buy 2 for $244.95 each

    51 In Stock

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1282     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain
  3. 500rds – 223 Rem Hornady Frontier 55gr. FMJ Ammo 500rds – 223 Rem Hornady Frontier 55gr. FMJ Ammo
    $249.95
    $0.5/ppr

    32 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1282     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain
  4. 840rds – 223 PMC on Stripper Clips in Steel Can 55gr. FMJ-BT Ammo 840rds – 223 PMC on Stripper Clips in Steel Can 55gr. FMJ-BT Ammo
    $424.95
    $0.51/ppr

    7 In Stock

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1250     Casing Type
    Brass     Muzzle Velocity
    3200     Primer Type
    Boxer     Bullet Weight
    55 Grain
  5. 1000rds - 5.56x45 PMC Battle Pack 55gr. M193 FMJ Ammo 1000rds - 5.56x45 PMC Battle Pack 55gr. M193 FMJ Ammo
    $514.95
    $0.51/ppr

    33 In Stock

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1306     Casing Type
    Brass     Muzzle Velocity
    3270     Primer Type
    Boxer     Bullet Weight
    55 Grain
  6. 30rds – 5.56x45 BPS 55gr. FMJ Ammo 30rds – 5.56x45 BPS 55gr. FMJ Ammo
    $15.45
    $0.51/ppr

    24 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1224     Casing Type
    Brass     Muzzle Velocity
    3166     Primer Type
    Boxer     Bullet Weight
    55 Grain
  7. 600rds – 223 Rem Winchester USA 55gr. FMJ Ammo 600rds – 223 Rem Winchester USA 55gr. FMJ Ammo
    $309.95
    $0.52/ppr

    41 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1282     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain
  8. 840rds – 5.56x45 PMC X-TAC 55gr. FMJBT Ammo in Banodlier in Ammo Can 840rds – 5.56x45 PMC X-TAC 55gr. FMJBT Ammo in Banodlier in Ammo Can
    $444.95
    $0.53/ppr

    12 In Stock

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1306     Casing Type
    Brass     Muzzle Velocity
    3270     Primer Type
    Boxer     Bullet Weight
    55 Grain
  9. 150rds – 5.56x45 Winchester USA 55gr. FMJ Ammo 150rds – 5.56x45 Winchester USA 55gr. FMJ Ammo
    $79.95
    $0.53/ppr

    ☆☆☆☆☆ 1 Review

    40 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1235     Casing Type
    Brass     Muzzle Velocity
    3180     Primer Type
    Boxer     Bullet Weight
    55 Grain
  10. 50rds – 5.56x45 Fiocchi 55gr. FMJBT M193 Ammo 50rds – 5.56x45 Fiocchi 55gr. FMJBT M193 Ammo
    $26.95
    $0.54/ppr

    129 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1280     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain
  11. 500rds - 223 Rem Hornady 55gr. SP Ammo 500rds - 223 Rem Hornady 55gr. SP Ammo
    $269.95
    $0.54/ppr

    48 In Stock

    Bullet type
    Soft-Point (SP)     Muzzle Energy
    1282     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain
  12. 840rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo Bandolier in Ammo Can 840rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo Bandolier in Ammo Can
    $454.95
    $0.54/ppr

    10 In Stock

    Bullet type
    Penetrator     Muzzle Energy
    1323     Casing Type
    Brass     Muzzle Velocity
    3100     Primer Type
    Boxer     Bullet Weight
    62 Grain
  13. 50rds – 223 Rem Hornady Frontier 55gr. FMJ Ammo 50rds – 223 Rem Hornady Frontier 55gr. FMJ Ammo
    $27.95
    $0.56/ppr

    143 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1282     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain
  14. 20rds - 5.56 PMC X-TAC 55gr. (XP193) Full Metal Jacket Ammo 20rds - 5.56 PMC X-TAC 55gr. (XP193) Full Metal Jacket Ammo
    $11.25
    $0.56/ppr

    ☆☆☆☆☆ 1 Review

    126 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1189     Casing Type
    Brass     Muzzle Velocity
    3120     Primer Type
    Boxer     Bullet Weight
    55 Grain
  15. 150rds – 223 Rem Winchester USA 55gr. FMJ Ammo 150rds – 223 Rem Winchester USA 55gr. FMJ Ammo
    $84.95
    $0.57/ppr

    41 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1282     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain
  16. 20rds – 223 Rem Patriot Sports 55gr. FMJ Ammo 20rds – 223 Rem Patriot Sports 55gr. FMJ Ammo
    $11.45
    $0.57/ppr

    102 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1315     Casing Type
    Brass     Muzzle Velocity
    3281     Primer Type
    Boxer     Bullet Weight
    55 Grain
  17. 200rds - 5.56 PMC M193 55gr. FMJ Ammo In Sealed Battle Pack 200rds - 5.56 PMC M193 55gr. FMJ Ammo In Sealed Battle Pack
    $114.95
    $0.57/ppr

    ☆☆☆☆☆ 2 Reviews

    55 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1306     Casing Type
    Brass     Muzzle Velocity
    3270     Primer Type
    Boxer     Bullet Weight
    55 Grain
  18. 20rds – 223 Rem PMC 55gr. FMJBT Ammo 20rds – 223 Rem PMC 55gr. FMJBT Ammo
    $11.50
    $0.57/ppr

    ☆☆☆☆☆ 3 Reviews

    127 In Stock

    ☆☆☆☆☆ 3 Reviews

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1027     Casing Type
    Brass     Muzzle Velocity
    2900     Primer Type
    Boxer     Bullet Weight
    55 Grain
    Ballistic Data Available
  19. 20rds - .223 WPA Military Classic 55gr. FMJ Ammo 20rds - .223 WPA Military Classic 55gr. FMJ Ammo
    $11.55
    $0.58/ppr

    90 In Stock

    Bullet type
    Full Metal Jacket (FMJ)     Casing Type
    Steel     Muzzle Velocity
    3130     Primer Type
    Berdan     Bullet Weight
    55 Grain
  20. 50rds – 223 Rem Hornady Custom 55gr. SP Ammo 50rds – 223 Rem Hornady Custom 55gr. SP Ammo
    $28.95
    $0.58/ppr

    ☆☆☆☆☆ 2 Reviews

    1 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Soft-Point (SP)     Muzzle Energy
    1282     Casing Type
    Brass     Muzzle Velocity
    3240     Primer Type
    Boxer     Bullet Weight
    55 Grain

21 - 40 of 161

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More resources for AR-15 and other 223 Remington or 5.56x45 shooters! Check out AmmoToGo.com's blog about ammo, guns and shooting.

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More About .223 & 5.56 Ammo

.223 and 5.56x45 ammunition are nearly identical but there are a few subtle differences that may help you decide which caliber is best for you. Generally, if you own an AR-15 or other rifle chambered for 5.56x45, you can safely shoot .223 or 5.56 ammunition in your firearm without any trouble. However, if you own a rifle that's designated for .223, you may not want to shoot 5.56x45 ammo. 5.56 cartridges are loaded to slightly higher pressures than most commercial .223 ammunition.

M855 green tipped 5.56 ammo

M855 vs. M193

Both the M855 and M193 cartridges are popular 5.56x45 loads. The M855 is 62 grain and has a steel core, which can help it penetrate armor slightly better than M193. For more details on the differences, check out this article on our blog about M855 vs. M193.

How Much is 223 Ammo?

Generally speaking, .223 and 5.56x45 ammunition is pretty cheap to shoot compared to other rifle options. You'll save money by buying your ammo in bulk and we carry a huge variety of 1,000 round cases for sale here that'll have you shooting all day. If you need a precision round, look to match-grade ammunition. This ammo is loaded with higher quality components and should give you more accuracy than cheaper, bulk range options.

Steel Cased Ammo vs. Brass Cased

Many shooters prefer to shoot steel-cased .223 ammo because it's cheaper than most brass-cased options for sale. Generally, steel cased ammo works well in AR-15 rifles and you shouldn't have any trouble. Some shooters believe steel cased rounds do lead to more wear and tear on your firearms but depending upon your level of knowledge, you may be able to swap out barrels and other rifle components on your own and the money saved on ammo will make it well worth your time.

Steel-cased ammunition manufactured today is not corrosive and it will not harm your .223 or 5.56x45 chambered firearm outside of regular wear-and-tear that you'd get from thousands of rounds of use.

.223/5.56x45 Bullet Types

Range Use

If you're shooting at the range, we recommend you go with a full metal jacket (FMJ) or full metal jacket boat-tail loaded ammunition. These rounds are typically cheap so you can get in as much training as possible within your budget.

Hunting with .223

Yes, you can hunt with .223 ammo in an AR-15 or other rifle. It's very common to hunt hogs and even whitetail deer with .223 ammunition. If you're going to do so, we suggest picking up ammo loaded with soft point bullets or a more sophisticated, polymer-tipped .223 round. These ammunition options are typically a little more expensive but the more sophisticated projectiles will help bring down game humanely.

Precision Shooting

Look for rounds branded as "match" by the manufacturer. We carry some of the best commercial loads available, featuring Federal Match, Winchester Match, Hornady and Barnes.

Recent .223 / 5.56 Reviews

  • ☆☆☆☆☆
    Hornady's gel testing at close range from 16" barrel shows dramatic fragmentation and ~ 9" penetration. Shorter barrels or longer distances should equal deeper penetration, and less fragmentation.
    John R Shirley on 500rds – 223 Rem Hornady Frontier 55gr. HP Match Ammo
  • ☆☆☆☆☆
    I was surprised on how fast my order got here. It was exactly as shown and advertised. I'll definitely be ordering again
    John on 1000rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo
  • ☆☆☆☆☆
    Good price and fast service! Just doesn't get any better than that!
    James Hawk on 20rds – 223 Rem Winchester Super-X 55gr. BTHP Ammo
  • ☆☆☆☆☆
    This is great ammo for light armor piercing, or varmint disposal, and staying within Geanva convention laws. Since I don't think any governments are buying on here, there are better rounds for whatever you are hunting for. Try HPBT, soft point, OPM, and Power Point depending upon what you are going after!
    John Honeycutt on 1000rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo