223 rounds are virtually identical in size to 5.56mm rounds. This means that the majority of the time, . 223 ammunition will chamber and fire in a 5.56mm chamber and vice versa. However, the biggest difference between the two is that 5.56x45mm ammunition is loaded to a significantly higher pressure than
.223 / 5.56 NATO Ammo
.223 / 5.56 NATO Ammo
.223 / 5.56 NATO Ammo
.223 / 5.56 NATO Ammo
Federal Premium FUSION .223 Remington 62 grain Fusion Soft Point Centerfire Rifle Ammunition 500 RDS
.223 / 5.56 NATO Ammo
.223 / 5.56 NATO Ammo
Hornady Frontier 5.56x45mm NATO 55 Grain Hollow Point Centerfire Rifle Ammunition 500 RDS
.223 / 5.56 NATO Ammo
Hornady Varmint Express .223 Remington 55 Grain V-MAX Centerfire Rifle Ammunition 500 RDS
.223 / 5.56 NATO Ammo
PMC Bronze .223 Remington 55 Grain FMJ Boat Tail Ammunition 500 RDS
.223 / 5.56 NATO Ammo
.223 / 5.56 NATO Ammo
