5.56 NATO vs .223 Remington: What's the Difference?
https://www.shootingillustrated.com/content/5-56-nato-vs-223-rem-what-s-the-difference/
WEBJul 28, 2018 · by. Philip Massaro. posted on July 28, 2018. Ammunition, Tips. Support NRA Shooting Illustrated DONATE. So, 5.56 NATO and .223 Remington. Two cartridges, identical exterior dimensions, yet the...
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