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.223 / 5.56

See our in-stock line-up of 223 Remington and 5.56x45 ammo below. 223 and 5.56 are not interchangeable calibers. If your firearm is chambered for 5.56, you're clear to fire either in the rifle. If your firearm is chambered for 223, you should only fire 223 Remington ammo in it.
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1 - 20 of 174

  1. 1000rds – 223 Rem PMC 55gr. FMJBT Ammo 1000rds – 223 Rem PMC 55gr. FMJBT Ammo Video

    $479.95

    $429.95

    $0.43/ppr

    ☆☆☆☆☆ 76 Reviews

    45 In Stock

    ☆☆☆☆☆ 76 Reviews

    Bullet type
    Full Metal Jacket (FMJ)     Muzzle Energy
    1027     Casing Type
    Brass     Muzzle Velocity
    2900     Primer Type
    Boxer     Bullet Weight
    55 Grain
    Ballistic Data Available
  2. 20rds – 223 Rem PMC 55gr. FMJBT Ammo 20rds – 223 Rem PMC 55gr. FMJBT Ammo
    $12.50
    $0.62/ppr

    ☆☆☆☆☆ 3 Reviews

    125 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
  3. 1000rds – 223 Rem Fiocchi 40gr. V-MAX Ammo 1000rds – 223 Rem Fiocchi 40gr. V-MAX Ammo
    $749.95
    $0.75/ppr

    ☆☆☆☆☆ 5 Reviews

    3 In Stock

    ☆☆☆☆☆ 5 Reviews

    Bullet type
    V-MAX     Muzzle Energy
    1183     Casing Type
    Brass     Muzzle Velocity
    3650     Primer Type
    Boxer     Bullet Weight
    40 Grain
    Ballistic Data Available
  4. 1000rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo 1000rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo Video

    $511.95

    $464.95

    $0.46/ppr

    ☆☆☆☆☆ 65 Reviews

    60 In Stock

    ☆☆☆☆☆ 65 Reviews

    Bullet type
    Penetrator     Muzzle Energy
    1323     Casing Type
    Brass     Muzzle Velocity
    3100     Primer Type
    Boxer     Bullet Weight
    62 Grain
  5. 20rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo 20rds – 5.56x45 PMC X-TAC 62gr. FMJ M855 Ammo
    $14.95
    $0.75/ppr

    ☆☆☆☆☆ 5 Reviews

    119 In Stock

    ☆☆☆☆☆ 5 Reviews

    Bullet type
    Penetrator     Muzzle Energy
    1174     Casing Type
    Brass     Muzzle Velocity
    2920     Primer Type
    Boxer     Bullet Weight
    62 Grain
  6. 20rds – 223 Rem Hornady 75gr. BTHP Match Ammo 20rds – 223 Rem Hornady 75gr. BTHP Match Ammo Video
    $27.95
    $1.4/ppr

    ☆☆☆☆☆ 2 Reviews

    73 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Hollow-Point Boat Tail (HP-BT)     Muzzle Energy
    1296     Casing Type
    Brass     Muzzle Velocity
    2790     Primer Type
    Boxer     Bullet Weight
    75 Grain
    Ballistic Data Available
  7. 20rds – 223 Rem Remington UMC 45gr. JHP Ammo 20rds – 223 Rem Remington UMC 45gr. JHP Ammo
    $18.95
    $0.95/ppr

    10 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    1259     Casing Type
    Brass     Muzzle Velocity
    3550     Primer Type
    Boxer     Bullet Weight
    45 Grain
  8. 20rds - 5.56 PMC X-TAC 55gr. (XP193) Full Metal Jacket Ammo 20rds - 5.56 PMC X-TAC 55gr. (XP193) Full Metal Jacket Ammo
    $13.95
    $0.7/ppr

    ☆☆☆☆☆ 1 Review

    105 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
  9. 1000rds – 5.56x45 PMC X-TAC 55gr. FMJBT Ammo 1000rds – 5.56x45 PMC X-TAC 55gr. FMJBT Ammo Video

    $484.95

    $449.95

    $0.45/ppr

    ☆☆☆☆☆ 22 Reviews

    33 In Stock

    ☆☆☆☆☆ 22 Reviews

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1189     Casing Type
    Brass     Muzzle Velocity
    3120     Primer Type
    Boxer     Bullet Weight
    55 Grain
  10. 20rds – 223 Rem Federal American Eagle 55gr. FMJBT Ammo 20rds – 223 Rem Federal American Eagle 55gr. FMJBT Ammo
    $13.95
    $0.7/ppr

    133 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
  11. 500rds – 223 Rem Federal American Eagle 55gr. FMJBT Ammo 500rds – 223 Rem Federal American Eagle 55gr. FMJBT Ammo Video

    $289.95

    $229.95

    $0.46/ppr

    ☆☆☆☆☆ 1 Review

    62 In Stock

    ☆☆☆☆☆ 1 Review

    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
  12. 20rds – 223 Rem Hornady Superformance Match 75gr. BTHP Ammo 20rds – 223 Rem Hornady Superformance Match 75gr. BTHP Ammo
    $30.95
    $1.55/ppr

    ☆☆☆☆☆ 2 Reviews

    18 In Stock

    ☆☆☆☆☆ 2 Reviews

    Bullet type
    Hollow-Point Boat Tail (HP-BT)     Muzzle Energy
    1429     Casing Type
    Brass     Muzzle Velocity
    2930     Primer Type
    Boxer     Bullet Weight
    75 Grain
  13. 20rds - 223 Federal Gold Medal 69gr. Match BTHP Ammo 20rds - 223 Federal Gold Medal 69gr. Match BTHP Ammo
    $27.95
    $1.4/ppr

    ☆☆☆☆☆ 3 Reviews

    39 In Stock

    ☆☆☆☆☆ 3 Reviews

    Bullet type
    Hollow-Point Boat Tail (HP-BT)     Muzzle Energy
    1333     Casing Type
    Brass     Muzzle Velocity
    2950     Primer Type
    Boxer     Bullet Weight
    69 Grain
    Ballistic Data Available
  14. 200rds – 223 Rem Hornady 75gr. BTHP Match Ammo 200rds – 223 Rem Hornady 75gr. BTHP Match Ammo
    $268.95
    $1.34/ppr

    2 In Stock

    Bullet type
    Hollow-Point Boat Tail (HP-BT)     Muzzle Energy
    1296     Casing Type
    Brass     Muzzle Velocity
    2790     Primer Type
    Boxer     Bullet Weight
    75 Grain
    Ballistic Data Available
  15. 20rds - 223 Federal American Eagle AE223G 50gr. JHP Ammo 20rds - 223 Federal American Eagle AE223G 50gr. JHP Ammo
    $15.95
    $0.8/ppr

    112 In Stock

    Bullet type
    Jacketed Hollow-Point (JHP)     Muzzle Energy
    1227     Casing Type
    Brass     Muzzle Velocity
    3325     Primer Type
    Boxer     Bullet Weight
    50 Grain
  16. 200rds – 5.56x45 Hornady Superformance Match 75gr. BTHP Ammo 200rds – 5.56x45 Hornady Superformance Match 75gr. BTHP Ammo

    $264.95

    $254.95

    $1.27/ppr

    29 In Stock

    Bullet type
    Hollow-Point Boat Tail (HP-BT)     Muzzle Energy
    1410     Casing Type
    Brass     Muzzle Velocity
    2910     Primer Type
    Boxer     Bullet Weight
    75 Grain
  17. 20rds - .223 WPA Polyformance 55gr. FMJ Ammo 20rds - .223 WPA Polyformance 55gr. FMJ Ammo
    $12.25
    $0.61/ppr

    ☆☆☆☆☆ 1 Review

    64 In Stock

    ☆☆☆☆☆ 1 Review

    Bullet type
    Full Metal Jacket (FMJ)     Casing Type
    Steel     Muzzle Velocity
    3241     Primer Type
    Berdan     Bullet Weight
    55 Grain
  18. 500rds – 223 Federal American Eagle 62gr. FMJ-BT Ammo 500rds – 223 Federal American Eagle 62gr. FMJ-BT Ammo
    $268.95
    $0.54/ppr

    3 In Stock

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1255     Casing Type
    Brass     Muzzle Velocity
    3020     Primer Type
    Boxer     Bullet Weight
    62 Grain
  19. 50rds – 223 Rem Fiocchi 62gr. FMJBT Ammo 50rds – 223 Rem Fiocchi 62gr. FMJBT Ammo
    $30.95
    $0.62/ppr

    ☆☆☆☆☆ 6 Reviews

    46 In Stock

    ☆☆☆☆☆ 6 Reviews

    Bullet type
    Full Metal Jacket Boat Tail (FMJ-BT)     Muzzle Energy
    1239     Casing Type
    Brass     Muzzle Velocity
    3000     Primer Type
    Boxer     Bullet Weight
    62 Grain
  20. 200rds - .223 Federal Gold Medal 69gr. Match BTHP Ammo 200rds - .223 Federal Gold Medal 69gr. Match BTHP Ammo
    $273.95
    $1.37/ppr

    20 In Stock

    Bullet type
    Hollow-Point Boat Tail (HP-BT)     Muzzle Energy
    1333     Casing Type
    Brass     Muzzle Velocity
    2950     Primer Type
    Boxer     Bullet Weight
    69 Grain
    Ballistic Data Available

1 - 20 of 174

More fromThe Lodge

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

223 Ballistics

An in-depth look at 223 ballistics for the top selling rounds among American shooters and hunters.
Read at the Lodge

223 Remington Ammo Resources .223 Rem Caliber Comparisons. How does .223 and 5.56x45 stack up against other rifle calibers? Read our in-depth guides with ballistic comparisons and more to be sure you're using the best caliber for the job.

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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

  • ☆☆☆☆☆
    Great round. Finally took it out to 500 yards. PSA AR15, with a 16” Rosco Mfg Purebred barrel. This was extremely consistent. Best group was sub moa (0.7”). Average group of 1” to 1.25”. From 100 to 500 very accurate. Very consistent. Will be ordering again.
    Ruben Macias on 250rds – 5.56x45 American Quality Ammunition 77gr. OTM Ammo
  • ☆☆☆☆☆
    Finally installed my Rainier arms 1-7 twist barrel and was able to finally try the 77 grain out 1 inch to 1.5 inch average groups at hundred yards with a primary arms,1-6x24 scope will be buying more.
    Joshua Talarico on 250rds – 5.56x45 American Quality Ammunition 77gr. OTM Ammo
  • ☆☆☆☆☆
    Good ammo always goes bang. Accurate but slow compared to mk262, 100 fps less. Runs solid to about 450 - 475 yard's out of a 14.5 then starts to fall short and strings a bit. I'd put this a notch below what AAC use to offer, but still worth the buy because of the price. In 2026, if you need a top notch round then get Black Hills, this offers a solid round for a good price, I'd like to see something closer to what AAC had but we'll see.
    Justin Dewey on 250rds – 5.56x45 American Quality Ammunition 77gr. OTM Ammo
  • ☆☆☆☆☆
    I have to give it five stars. It performed with constant MOA out to 200 hundred yards. I was shooting with my 18inch SS barrel AR15 in very hot conditions. I purposely did not allow the barrel to cool and shot 10 round groups. I will purchase again when needed.
    Craig D. on 250rds – 5.56x45 American Quality Ammunition 77gr. OTM Ammo