This video provides a practical, experimental comparison between 5.56 NATO and .223 Remington cartridges, focusing on their steel penetration capabilities. The host, demonstrating high authority in ballistics, uses controlled tests with varying steel thicknesses and barrel lengths to illustrate the performance differences, primarily attributed to higher pressure and longer throat dimensions in the 5.56 NATO. The findings highlight that 5.56 NATO generally offers superior penetration against steel targets compared to .223 Remington under similar conditions.
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