5.56 NATO vs 7.62x39: Unexpected Results - UBT

Published on November 16, 2023
Duration: 9:32

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.

Quick Summary

In Ultimate Barrier Testing (UBT), 5.56 NATO and 7.62x39mm showed similar performance on lumber, sand, and concrete. However, 5.56 NATO's higher velocity resulted in deeper craters on 3/8 inch steel, making it the winner of this specific UBT session.

Chapters

  1. 00:00Introduction and UBT Rules
  2. 00:33Velocity and Energy Comparison
  3. 00:57Round 1: Lumber Test
  4. 03:02Round 2: Sand Test
  5. 04:49Round 3: Concrete Test
  6. 06:31Round 4: Steel Test
  7. 09:18Final Results and Winner

Frequently Asked Questions

What were the key findings of the 5.56 NATO vs 7.62x39mm Ultimate Barrier Testing?

The UBT found both calibers performed similarly on lumber, sand, and concrete. However, 5.56 NATO showed superior performance on 3/8 inch steel, creating deeper impact craters due to its higher velocity, ultimately winning the test.

How did 5.56 NATO and 7.62x39mm perform against concrete in the UBT?

In the UBT against 1.57-inch solid concrete blocks, both 5.56 NATO and 7.62x39mm rounds managed to shatter the blocks. However, neither round significantly penetrated the plywood backing behind the concrete, resulting in a draw.

Which caliber performed better against steel in the UBT, and why?

5.56 NATO performed better against 3/8 inch mild steel, creating significantly deeper craters (0.340") compared to 7.62x39mm (0.192"). This is attributed to 5.56 NATO's higher muzzle velocity.

What were the average velocities and energies for the tested rounds?

The 5.56 NATO (55gr FMJ) averaged 3008 fps with 1105 ft/lbs of energy. The 7.62x39mm (122gr FMJ) averaged 2344 fps with 1489 ft/lbs of energy.

Related News

All News →

More Reviews Videos You Might Like

More from Banana Ballistics

View all →