223/5.56 1500 count – Cleaned & Polished mixed head stamp range

223 Remington - 5.56 Lake City Brass (CRIMPED PRIMERS) - 1000 ct - Brassman Brass

once fired bulk brass for reloading in stock free shipping polished tumble cleaned range brass

Thunder Basin Brass

55gr 5.56 NATO and .223 Remington Ammunition Comparison –

May 2022 Premier Firearms & Militaria Auction - Day 1 by PoulinAuctions - Issuu

FL sizing 223 mixed brass

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5.56×45 « Daily Bulletin

MIXED HEADSTAMP - .223 REM / 5.56 NATO BRASS – Ammetron, LLC

Previously Unknown Latvian 223 REM/5.56x45 Head stamps - General Ammunition Discussion - International Ammunition Association Web Forum

5.56×45 « Daily Bulletin

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