9MM vs .300 Blackout!...Subsonic Home Defense!
This guide details a comprehensive ballistic gel testing methodology for comparing subsonic handgun and rifle calibers, specifically 9mm Luger and .300 Blackout, for home defense applications. The expert-led demonstration includes setup, live-fire testing with chronograph readings, and detailed analysis of projectile performance, emphasizing expansion, penetration, and weight retention. The instructor, demonstrating significant expertise, provides insights into the practical application of these rounds from short-barreled platforms.













