.223 & 5.56 Ammo For Sale
.223 Remington and 5.56 NATO ammunition are among the most popular rifle cartridges in America. Trusted by recreational shooters, competitive marksmen, hunters, law enforcement agencies, and military organizations, these versatile cartridges offer excellent accuracy, manageable recoil, and widespread availability.
At Top Gun Ammo, we carry factory-new .223 and 5.56 ammunition from trusted manufacturers. Whether you're looking for affordable FMJ range ammunition, defensive loads for your AR-15, hunting ammunition, or bulk case quantities, you'll find in-stock rifle ammo ready to ship from our Florida warehouses.
What Is the Difference Between .223 and 5.56 Ammo?
Although .223 Remington and 5.56 NATO cartridges appear nearly identical externally, they are not exactly the same. The primary differences involve chamber specifications and operating pressures. Most rifles chambered in 5.56 NATO can safely fire both .223 Remington and 5.56 NATO ammunition, while rifles chambered specifically for .223 Remington should generally only fire ammunition approved by the firearm manufacturer.
For many shooters, the choice between .223 and 5.56 comes down to firearm compatibility, intended use, and ammunition availability.
Popular Types of .223 & 5.56 Ammo
FMJ Range Ammo
Full Metal Jacket ammunition remains the most popular option for range training and recreational shooting. FMJ loads offer reliable performance and affordable cost per round, making them ideal for high-volume AR-15 shooting.
Defensive Rifle Ammo
Many shooters choose premium defensive loads featuring hollow point, soft point, bonded, or barrier-blind projectiles for personal protection and duty use.
Hunting Ammo
.223 and 5.56 ammunition are commonly used for predator hunting, varmint hunting, and certain game animals where legal. Hunting loads often feature expanding bullet designs intended for ethical harvesting.
Match & Precision Ammo
Match-grade ammunition is designed for enhanced consistency and accuracy. These loads are frequently used by competitive shooters and precision rifle enthusiasts.
Common .223 & 5.56 Bullet Weights
55 Grain
55 grain ammunition remains the most common choice for range training, recreational shooting, and general AR-15 use. It offers a balance of affordability, velocity, and accuracy.
62 Grain
62 grain loads are popular among shooters looking for slightly heavier projectiles and are commonly found in military-style 5.56 NATO ammunition.
69-77 Grain
Heavier match bullets ranging from 69 to 77 grains are often used for precision shooting, competition, and extended-range applications where improved ballistic performance is desired.
Why AR-15 Owners Choose .223 & 5.56
- Low recoil
- Excellent accuracy
- Wide ammunition availability
- Affordable training ammunition
- Strong defensive performance
- Versatile hunting applications
- Compatible with most AR-platform rifles
Popular .223 & 5.56 Ammo Brands
Top Gun Ammo carries rifle ammunition from trusted manufacturers including Federal Premium, American Eagle, PMC, Hornady, Fiocchi, Norma, Speer, Remington, and other respected ammunition brands. Whether you're looking for budget-friendly FMJ loads or premium defensive ammunition, you'll find factory-new cartridges from brands trusted by shooters nationwide.
Shop .223 & 5.56 Ammo by Use
AR-15 Range Ammo
Browse affordable FMJ ammunition designed for target shooting, training, qualification courses, and recreational range use. FMJ loads remain the most popular option for high-volume AR-15 shooters.
Bulk .223 & 5.56 Ammo
Save money by purchasing bulk rifle ammunition in larger case quantities. Bulk ammunition is ideal for frequent shooters, firearms instructors, and anyone looking to maintain a reserve supply of ammunition.
Home Defense Rifle Ammo
Many AR-15 owners choose premium defensive ammunition designed to provide reliable expansion, controlled penetration, and dependable terminal performance.
Hunting Ammunition
Shop hunting loads designed for predators, varmints, hogs, and other game where legal. Expanding bullet designs offer improved terminal performance compared to traditional FMJ ammunition.
Compare Rifle Calibers
Looking for other rifle cartridges? Browse our selections of 7.62x39 Ammo, .308 Winchester Ammo, 300 Blackout Ammo, and other Rifle Ammo.
