5.56 NATO vs 7.62x39: Unexpected Results - UBT
This Ultimate Barrier Testing (UBT) video compares 5.56 NATO and 7.62x39mm across various barriers. While both calibers performed similarly on lumber, sand, and concrete, 5.56 NATO demonstrated superior performance against 3/8 inch steel due to its higher velocity, resulting in deeper craters. Ultimately, 5.56 NATO won this specific UBT session.









