300 Blackout VS 5.56 Energy Out To 75 Yards

Published on December 27, 2025
Duration: 5:28

This video provides a direct comparison of .300 Blackout and 5.56 NATO energy output out to 75 yards, using two 16-inch barrel AR-15 platforms and specific handloads. The analysis, conducted by The Gun Dungeon Host, utilizes a LabRadar to measure velocity and calculate energy, concluding that .300 Blackout offers significantly more energy at these distances, making it a strong contender for deer hunting where a minimum of 1000 ft-lbs is often recommended.

Quick Summary

The .300 Blackout significantly outperforms 5.56 NATO in retained energy out to 75 yards. With a 125gr SST, it produced 1805 ft-lbs at the muzzle and retained 1529 ft-lbs at 75 yards, exceeding the 1000 ft-lbs often recommended for deer hunting.

Chapters

  1. 00:00Introduction and Setup
  2. 01:345.56 NATO Testing
  3. 02:05300 Blackout Testing
  4. 02:32Data Analysis and Conclusion

Frequently Asked Questions

What is the muzzle energy comparison between .300 Blackout and 5.56 NATO?

From a 16-inch barrel, a 125-grain .300 Blackout handload produced 1805 ft-lbs of muzzle energy, while a 60-grain 5.56 NATO handload generated 1111 ft-lbs.

How does .300 Blackout energy compare to 5.56 NATO at 75 yards?

At 75 yards, the .300 Blackout retained 1529 ft-lbs of energy, significantly more than the 5.56 NATO's 892 ft-lbs from the tested loads.

Which caliber is better for deer hunting based on this energy test?

Based on the 1000 ft-lbs minimum energy often recommended for deer hunting, the .300 Blackout is the clear winner at distances up to 75 yards in this test.

What equipment was used to test the energy of .300 Blackout and 5.56 NATO?

The test utilized two 16-inch barrel AR-15 rifles and a LabRadar Doppler radar unit to measure muzzle velocity and calculate energy for specific handloads.

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