This video provides a comprehensive 9mm velocity test across four different barrel lengths (3.38", 4.5", 7.5", 10.5") using various firearms including the Taurus GX4, Glock 17, BCA BC9, and PSA AK-V. The expert analysis highlights how barrel length significantly impacts projectile velocity and energy with different ammunition types, from standard FMJ to +P defensive rounds and lightweight, high-velocity options. The data collected using a chronograph offers valuable insights for understanding terminal ballistics and optimal firearm/ammunition pairings.
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