The Marine Corps' New Hotness: Mk318 Mod1

In the early days of the GWOT, both the Army and the USMC wanted more effective ammunition. While several designs were considered, it looks as though M855A1 EPR won the day. A very close second was Mk318 Mod0 and Mod1. In this video, we fire Mk318 Mod1 from a 10.5" Arfcom upper into calibrated 10% ballistic gelatin to assess terminal effect.

AR15.COM Thread:
https://www.ar15.com/forums/Ge....neral/Gel-Test-Mk318

Penetration: 25.0"
Retained weight: 37.6gr
Recovered dimensions: 0.454" x 0.221"
Neck: 0.5"
TSC: 11" x 3"

Impact velocities in fps:
2,696
2,669
2,664
2,655
2,649
Average: 2,666.60
StdDev: 18.17
Min: 2649
Max: 2,696
Spread: 47

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#Arfcom #556 #Mk318