Suppressed 300 Blackout - Subsonic vs Supersonic Ammo!
This video compares subsonic and supersonic 300 Blackout ammunition when used with a suppressor. Subsonic rounds are significantly quieter, eliminating the supersonic crack, while supersonic rounds still produce a noticeable crack downrange. Terminal ballistics testing shows the supersonic 110gr V-MAX fragmenting with a large wound cavity and 14 inches of penetration, whereas the subsonic 208gr A-MAX tumbled and showed less expansion.









