This video provides a comprehensive comparison between the 5.7x28mm and .22 WMR calibers through rigorous barrier testing. The 5.7x28mm consistently outperformed the .22 WMR, demonstrating superior penetration through lumber, concrete, and steel, and greater terminal performance in ballistic gel. While both calibers showed limitations against sand, the 5.7x28mm's higher velocity and energy proved decisive in most tests.
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