Home Rifle Ammo 5.56x45mm NATO

5.56x45mm NATO

Average Cost Per Round

$0.55/rd
↑ $0.00 (0.1%) in the last 30D
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Price Trend
0.1%
Yearly Price Points
29,097
Dealers
9
Products
12

5.56x45mm NATO Prices

PRODUCT PRICE/RD
$0.42
1200 Rounds
$0.44
1080 Rounds
$0.44
1000 Rounds
$0.45
1000 Rounds
$0.46
1000 Rounds
$0.47
1000 Rounds
$0.52
1000 Rounds
$0.55
1000 Rounds
$0.60
1000 Rounds
$0.64
1000 Rounds
$0.91
20 Rounds
$0.98
200 Rounds
Showing 12 Products

5.56x45mm NATO Overview

The 5.56x45mm NATO represents the standard for modern military rifles and has become equally popular in civilian markets through its commercial equivalent, the .223 Remington. Adopted by NATO in 1963, this cartridge revolutionized military small arms by prioritizing lightweight ammunition capacity, minimal recoil, and effectiveness at typical combat ranges. Its success has made it the most widely used centerfire rifle cartridge in the Western world.

This cartridge's popularity stems from its exceptional versatility and practicality. The combination of high velocity, flat trajectory, and minimal recoil makes it equally effective for military operations, law enforcement, home defense, competition shooting, and varmint hunting. Modern ammunition development has significantly enhanced its terminal performance, while maintaining the original benefits of light weight, high capacity, and shooter-friendly characteristics that made it revolutionary.

Advantages and Disadvantages

Pros

  • Minimal recoil for quick follow-up shots
  • Excellent accuracy potential
  • Light weight allows carrying more ammunition
  • Wide variety of ammunition available
  • Affordable training ammunition

Cons

  • Limited for larger game hunting
  • Wind-sensitive at longer ranges
  • Less barrier penetration than larger calibers
  • Terminal performance highly dependent on bullet selection
  • Maximum effective range limitations

5.56x45mm NATO Ballistics

The 5.56 NATO typically achieves velocities between 2,800-3,300 fps depending on barrel length and bullet weight. Most loads use bullets from 55 to 77 grains, with velocity and trajectory varying significantly based on barrel length - typically dropping about 25-50 fps per inch of barrel under 20 inches.

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Muzzle Velocity
3330 fps
Projectile Weight
55 gr
Ballistic Coef.
0.371 G1
Muzzle Energy
ft-lbs

Similar Calibers Compared

Caliber Typical Bullet Weight Muzzle Velocity Muzzle Energy Energy at 300 yds
5.56 NATO 62gr 3050 fps 1280 ft-lbs 680 ft-lbs
.308 Winchester 168gr 2700 fps 2719 ft-lbs 1650 ft-lbs
6.5 Grendel 123gr 2580 fps 1818 ft-lbs 1150 ft-lbs
.300 BLK 125gr 2215 fps 1360 ft-lbs 590 ft-lbs

What 5.56x45mm NATO Does Best

Combat and Tactical Applications

The 5.56 NATO excels in its primary role as a military and law enforcement cartridge. Its light recoil enables quick follow-up shots and rapid target transitions, while its high velocity creates significant tissue disruption despite its small size. The ability to carry large quantities of ammunition and maintain accuracy during rapid fire makes it particularly effective in both offensive and defensive scenarios. Modern bullet designs have enhanced its terminal performance significantly, addressing early concerns about effectiveness.

Competitive Shooting

In competitive shooting, particularly 3-gun and tactical competitions, the 5.56 NATO's minimal recoil and flat trajectory make it exceptionally effective. Competitors can engage multiple targets quickly and transition between different ranges with minimal hold-over adjustments. The wide variety of match-grade ammunition available allows shooters to optimize their loads for specific competition requirements, while the cartridge's inherent accuracy potential supports precision shooting out to 600 yards and beyond.

Training and Practice

For training and practice, the 5.56 NATO offers an ideal combination of manageable recoil, reasonable cost, and widespread availability. The light recoil helps shooters develop proper technique without developing flinch, while the relatively low ammunition cost encourages high-volume practice. The cartridge's consistent performance and accuracy make it excellent for developing marksmanship skills at both close and medium ranges.

Types of Projectiles

Full Metal Jacket (FMJ)

  • Standard practice ammunition and military "ball" rounds for general use

Open Tip Match (OTM)

  • Highly accurate ammunition for competition and precision shooting

Hollow Point (HP)

  • Defensive ammunition designed for controlled expansion

Bonded Soft Point

  • Premium hunting and duty ammunition with consistent expansion

Common 5.56x45mm NATO Bullet Weights

55 grain

  • Traditional weight, excellent for general use and varmint hunting

62 grain

  • Military standard weight, good balance of velocity and penetration

75-77 grain

  • Heavy match bullets for maximum accuracy and wind resistance