6.5 Grendel
Since 1976

Unprimed Brass Cases

.223 Remington (Small Rifle primer)

.223 Rem, .223, 5.56, 5.56mm Nato, 5.56x45mm
1.745 - 1.750 O.A.L.

The .223 Remington is one of the most widely used centerfire cartridges today. Tracing its roots back to the .222 Remington, the .223 was designed to achieve certain ballistics for military use. The .223 Remington, when in its military form, is known as the 5.56x45mm NATO. The differences between the two being the pressures that they are loaded at and the chamber in the firearm itself.

The .223 has established itself as an excellent varmint and target caliber. It dominates all other rifle calibers in competitions such as 3-gun, and has a dedicated following in several other sports due to its low recoil and accuracy potential. Those two attributes coupled with good velocity allow it to excel as a varmint gun also.

When loaded at .223 Remington pressures, our brass is safe to use in any firearm chambered for .223 or 5.56x45mm. If loaded to 5.56 pressures, you need to use firearms labeled for use with 5.56mm. It can be unsafe to fire 5.56mm ammunition in firearms with a .223 Remington chamber.

Status: Available Now

Box of
.223 Remington


Overall Rating
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Reviews: 2
Tim G of Carmi, Illinois
4 Stars4 Stars4 Stars4 Stars4 Stars
Starline Brass is a great product I have bought several bags and have had great result with it holds up great no problem s with it yet there pistol Brass is also a plus will continue useing it

Ray B of Stony Point, New York
5 Stars5 Stars5 Stars5 Stars5 Stars
Excellent Brass as expected... Starline is top notch all around... I'm HOPING to see 22 Hornet and maybe 25-20 added to the lineup ???? hint hint!!!? Thanks Starline for adding more calibers and making an Excellent product!!!