The Speer Uni-Cor is a fantastic projectile but HSM is known for sometimes producing light loads. Then again, .357 mag is pretty rowdy and rather forgiving in regard to terminal effect. We shoot HSM's .357 mag 125gr Uni-Cor from a Smith & Wesson Model 13L 4" revolver into clear gel to assess terminal performance.

High-Speed Camera Courtesy of Aimed Research
https://www.aimed-research.com/high-speed-camera-rentals.php
nboor@aimed-research.com
724-877-5472

Bare gel:
Penetration: 14.2", 14+, 18.7"
Retained weight: 124.2gr, 123.2gr
Max expansion: 0.588", 0.592"
Min expansion: 0.412", 0.412"

Heavy clothing:
Penetration: 29"
Retained weight: 125.7gr
Max expansion: N/A
Min expansion: N/A

Velocities in fps:
1,186
1,192
1,193
1,208
1,199
1,212
Average: 1,198
StdDev: 10.01
Min: 1,186
Max: 1,212
Spread: 26

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#arfcom #357 #hsm
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https://www.youtube.com/watch?v=JQqx-ZfwZrc