.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 183

  1. 900rds - .223 Federal American Eagle AE223AF 55gr. FMJBT Ammo on Strippers 900rds - .223 Federal American Eagle AE223AF 55gr. FMJBT Ammo on Strippers
    $259.95
    $0.29/ppr

    41 In Stock

  2. 500rds - 223 Remington UMC 55gr. FMJ Ammo 500rds - 223 Remington UMC 55gr. FMJ Ammo
    $144.95
    $0.29/ppr

    53 In Stock

  3. 1000rds - 5.56 Federal Lake City XM193BK 55gr. FMJ Ammo 1000rds - 5.56 Federal Lake City XM193BK 55gr. FMJ Ammo

    ☆☆☆☆☆ 5 Review(s)

    $319.95

    $294.95

    $0.30/ppr

    43 In Stock

  4. 1000rds - 5.56 Federal Lake City M855 62gr Penetrator Ammo 1000rds - 5.56 Federal Lake City M855 62gr Penetrator Ammo

    ☆☆☆☆☆ 13 Review(s)

    $304.95

    $294.95

    $0.30/ppr

    41 In Stock

  5. 1000rds – 223 Rem Winchester USA 55gr. FMJ Ammo 1000rds – 223 Rem Winchester USA 55gr. FMJ Ammo
    $294.95
    $0.30/ppr

    70 In Stock

  6. 20rds - 223 Rem Brown Bear 55 Grain FMJ - 20 Lacquered Rounds 20rds - 223 Rem Brown Bear 55 Grain FMJ - 20 Lacquered Rounds
    $5.95
    $0.30/ppr

    132 In Stock

  7. 20rds - 223 Tula 55gr. HP Ammo 20rds - 223 Tula 55gr. HP Ammo
    $5.95
    $0.30/ppr

    90 In Stock

  8. 20rds - 223 Tula 75gr. HP Ammo 20rds - 223 Tula 75gr. HP Ammo

    ☆☆☆☆☆ 1 Review(s)

    $5.95
    $0.30/ppr

    109 In Stock

  9. 500rds - .223 Silver Bear 62gr. Hollow Point Ammo 500rds - .223 Silver Bear 62gr. Hollow Point Ammo

    ☆☆☆☆☆ 11 Review(s)

    $149.95
    $0.30/ppr

    3 In Stock

  10. 1000rds - .223 PMC Bronze 55gr. FMJ Ammo 1000rds - .223 PMC Bronze 55gr. FMJ Ammo Video

    ☆☆☆☆☆ 69 Review(s)

    $304.95

    $299.95

    $0.30/ppr

    55 In Stock

  11. 1000rds - .223 Federal American Eagle AE223BK 55gr. FMJ Ammo 1000rds - .223 Federal American Eagle AE223BK 55gr. FMJ Ammo

    ☆☆☆☆☆ 7 Review(s)

    $299.95
    $0.30/ppr

    54 In Stock

  12. 20rds – 223 Rem Red Army Standard 56gr. FMJBT Ammo 20rds – 223 Rem Red Army Standard 56gr. FMJBT Ammo
    $6.00
    $0.30/ppr
    • Buy 10 for $5.75 each

    75 In Stock

  13. 1000rds – 223 Rem Federal American Eagle 55gr. FMJBT Ammo 1000rds – 223 Rem Federal American Eagle 55gr. FMJBT Ammo
    $305.00
    $0.31/ppr

    70 In Stock

  14. 20rds - .223 WPA 55gr. HP Ammo 20rds - .223 WPA 55gr. HP Ammo

    ☆☆☆☆☆ 3 Review(s)

    $6.15
    $0.31/ppr

    125 In Stock

  15. 1000rds - 5.56 PMC X-TAC 55gr. (XP193) Full Metal Jacket Ammo 1000rds - 5.56 PMC X-TAC 55gr. (XP193) Full Metal Jacket Ammo Video

    ☆☆☆☆☆ 18 Review(s)

    $339.95

    $314.95

    $0.32/ppr

    69 In Stock

  16. 500rds - .223 Silver Bear 55gr. Hollow Point Ammo 500rds - .223 Silver Bear 55gr. Hollow Point Ammo

    ☆☆☆☆☆ 1 Review(s)

    $159.95
    $0.32/ppr

    13 In Stock

  17. 500rds - .223 Federal American Eagle 55gr. FMJ Ammo 500rds - .223 Federal American Eagle 55gr. FMJ Ammo

    ☆☆☆☆☆ 2 Review(s)

    $159.95
    $0.32/ppr

    33 In Stock

  18. 500rds - 223 Rem Hornady Frontier 55gr. FMJ Ammo 500rds - 223 Rem Hornady Frontier 55gr. FMJ Ammo
    $159.95
    $0.32/ppr

    16 In Stock

  19. 1000rds - 5.56 Magtech/CBC 62gr. FMJ Ammo 1000rds - 5.56 Magtech/CBC 62gr. FMJ Ammo
    $319.95
    $0.32/ppr

    10 In Stock

  20. 20rds - .223 WPA Polyformance 55gr. FMJ Ammo 20rds - .223 WPA Polyformance 55gr. FMJ Ammo

    ☆☆☆☆☆ 1 Review(s)

    $6.45
    $0.32/ppr

    115 In Stock

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21 - 40 of 183

Recent .223 / 5.56 Reviews

  • ☆☆☆☆☆
    I like this ammo because it is cheap. Bought 1000 last year of 62 gr hp. Had some issues of stuck cases. I found that if I used a spray or liquid dry silicon lube on the cases and let them dry they fed and extracted fine. I then started just putting the lube on after loading the mags. That made them slip out of my metal mags easily and was good for my mags also.
    Roger on 1000rds - 223 Tula 55gr. FMJ Ammo
  • ☆☆☆☆☆
    The best, period. If you have a 1/7 or 1/8 barrel you will see why. Brassgrill, NC
    Brass grill on 500rds - 5.56mm Black Hills 77gr. Open Tip Match Ammo
  • ☆☆☆☆☆
    Ive whent through over a 1000 of this and Amrscore ammunition had only one failure to fire very clean ammo
    Daniel Bradshaw on 1000rds - .223 Fiocchi 55gr. FMJ Ammo
  • ☆☆☆☆☆
    Ive whent through over a 1000 of this and Amrscore ammunition had only one failure to fire very clean ammo
    Daniel Bradshaw on 1000rds - .223 Fiocchi 55gr. FMJ Ammo