No — stops inside steel ar500 (reaches 4 mm of a 10 mm barrier)
Penetration depth
4 mm (0.2″)
Impact velocity
715 m/s (2346 fps)
Muzzle energy
2045 J (1508 ft-lb)
Bullet behaviour
Intact
Fired at the muzzle, a representative 7.62x39 load (8 g, FMJ, 715 m/s) reaches roughly 4 mm (0.2 inches) into steel ar500. It loses its energy before defeating a typical barrier of this material.
About Steel AR500
Hardened AR500 steel (~10 mm) is used for rifle-rated targets and armor.