Will It Stay Subsonic From A CZ Scorpion? 9mm 147gr Gold Dot Gel Test

Most 9mm 147gr ammo is subsonic when fired from a 4"-5" pistol barrel. We fire 9mm 147gr Gold Dot fired from a CZ Scorpion with a 7.72" barrel into clear gel to assess velocity, penetration, expansion, and retained weight.

Phantom V642 high-speed camera
Courtesy of Aimed Research
https://www.aimed-research.com..../high-speed-camera-r
[email protected]
724-877-5472

Bare gel:
Penetration: 16.4", 17.0"
Retained weight: 146.5gr, 146.4gr
Max expansion: 0.577", 0.557"
Min expansion: 0.430", 0.417"

Heavy clothing:
Penetration: 20.5", 19.4"
Retained weight: 146.9gr, 147.2gr
Max expansion: 0.623", 0.674"
Min expansion: 0.435", 0.452"

Velocities in fps:
1,142
1,148
1,164
1,179
1,168
Average: 1,160
StdDev: 15.07
Min: 1,142
Max: 1,179
Spread: 37

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