Totally ok for shooting out of a rifle chambered in either .223 Rem or 5.56, the 223 options listed here are designed for more than just close-range plinking. Each bullet profile has a specific purpose as indicated below.

Brass: Some of our Special Purpose .223 is loaded only in new brass. For precision shooting, we feel it's essential that each piece of brass is identical so the load is precisely the same between each round.

*IMPORTANT: Though both cartridges look identical, 5.56 is loaded to a higher pressure than .223, which is why rifles chambered for a 5.56 cartridge can fire .223, but it is not recommended that 5.56 cartridges are fired out of a rifle chambered for .223

Looking for 5.56 instead? Click here!

Bullet/Grain	Application	Velocity	bc
55gr HPBT	precision shooting, competition	3075/20"	.254 (G1)
55gr V-MAX	Small Game, Defense	3000/20"	.255 (G1)
55gr SP BT	Small Game, Duty/Defense	2830/16"	.235 (G1)
69gr Pro Series	(Sierra Bullet) precision shooting, competition	2735/24"	.305 (G1)
69gr HPBT	(Hornady Bullet) training, defense, varmint	2650/20"	.315 (G1)
75g HPBT	precision shooting, competition	2825/24"	.395 (G1)

Not sure what the abbreviations are? See our guide here.