We shoot 5.56mm Barnes 85gr open tip match ammunition from a 10.5″ AR15.com upper with a 1:7″ twist, 10.5″ barrel into Clearballistics ballistic gel to measure velocity, penetration, expansion/fragmentation, and retained weight.
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Penetration: 14″
Retained weight: 31.0gr
Neck: 2″
TSC: 7″ x 5″
Velocities in fps:
2,290
2,275
2,229
2,231
2,280
Average: 2,261.00
StdDev: 28.82
Min: 2,229
Max: 2,290
Spread: 61
««« GUNS IN THIS VIDEO »»»
10.5″ AR15.com upper, RRA lower
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