Videos tagged with Expansion Ratio

This in-depth ballistic gel test evaluates Underwood's 9mm +P 115 Grain Sporting JHP ammunition fired from a Canik Mete MC9 (3.1" barrel) and an FN 509 (4.5" barrel). The test meticulously records muzzle velocities, penetration depths, projectile expansion, and weight retention, providing valuable data for self-defense ammunition selection. The expert analysis highlights the ammunition's excellent performance, particularly its massive expansion and near 100% weight retention, while also discussing penetration nuances.