AR-15 vs AK-47 vs 100lbs of CONCRETE!!! (Penetration Test)
This video conducts a concrete penetration test comparing the AR-15 (chambered in 5.56x45mm) and the AK-47 (chambered in 7.62x39mm). The test utilizes 100lb concrete slabs within 5-gallon buckets. The results indicate that the 7.62x39mm caliber is significantly more effective at penetrating hard barriers like concrete compared to the 5.56x45mm caliber.













