https://youtu.be/dq59_x7OJzY

Remington 120 gr OTFB (open tip, flat base) fired from 8" AR15.com upper into calibrated 10% gelatin.

BB: 589.5 fps, 3.6"

Impact velocity: 1,941
Neck: 3.7"
Base of jacket penetration: 13.4"
Core penetration: 14" of gelatin plus 12" of water.
Front jacket: 21.9gr
Rear jacket: 13.1gr
Core: 79.6gr