5.56x45mm Winchester Duplex Phase III (2) 35gr FMJ 20 percent gelatin

20 inch barrel AR-15 5.56x45mm M855 bolt carrier velocity

223 Remington Barnes TSX 55gr 16 inch barrel auto glass at 45 degree obliquity 10 percent gelatin

223 Remington Sierra OTM 77gr vs FBI car door

M855 from 16 inch barrel 9 twist 20 percent gelatin 10ft distance

M856 tracer from 16 inch barrel 9 twist 20 percent gelatin 10ft distance