Copper "Extreme" Penetration Bullets: Do They REALLY Work?
This TFB TV review critically examines Lehigh Defense's fluted copper bullets, the Extreme Penetrator and Extreme Defense lines. While high-speed footage and meat tests suggest these bullets create larger temporary cavities than standard defensive rounds like Federal HST, the host remains skeptical about their real-world effectiveness compared to established FBI metrics. The review highlights the importance of sectional density for deep penetration and cautions that ballistic gel may not perfectly replicate living tissue performance.









