Primed .223 & 5.56 Brass

223 / 5.56 Primed New Brass - 250 Pieces

Brass - 5.56x45 Brass Cases

If there's no stamped label on the rifle bullets' primer rims, how do you visually distinguish between .223 caliber to 5.56x45? - Quora

Starline Brass .223 Rem/5.56 Unprimed Brass Small Cartridge Case, 100/bag - STAR223REMEU

Processed 223 Brass for reloading - 500 pieces

5.56mm/223 Rem – 1000 Count, Deprimed and cleaned, Range Brass – Sleeping Dog Ammo

Problems priming .223/5.56 cases

5.56 Headstamps : r/reloading

223 REM Primed Cases - 1000 ct.

223 Rem 5.56 NATO Dirty Brass Shells Empty Spent Bullet Casings Used –