Brass Fetcher Ballistic Testing
Test # AP 2
Bare gelatin. (Nominal 10% concentration)
Cartridge : .223 Remington (5.56x45mm NATO) Barnes 53gr. Triple-Shok X-bullet
Block Calibration :
Primary block : 3.6 ± 0.05 inch penetration @ 567 ± 0.5 ft/sec
Vest was draped over the face of the gelatin block. Vest was new old stock but never issued. Fabric was Kevlar 29.
Load was a handloaded round, utilizing 25.5 grains of Varget powder, Winchester .223REM cases and using CCI small rifle primers. A light crimp was placed on the case at the final annular groove on the bullet.
Bullet Performance:
Impact Velocity : 2732 ± 0.5 feet/second
Deepest Penetration Depth : 16.0 ± 0.05 Inch
Maximum Crack Diameter : NR
Max Crack Diameter Location : NR
Cavitation Depth : NR
Notes:
Weapon Bushmaster AR-15, with 16.0 barrel length and 1/9 twist rate
Distance 10 feet, muzzle to gelatin impact face
Test site conditions - 71 deg F
Time out of refrigeration prior to shot impact - 6 minutes
Bullet recovered weight NR
Bullet recovered average diameter 0.381
Bullet recovered length NR
