How Insane Is 5.56 White Tip?

Published on April 10, 2026
Duration: 14:56

This video provides a detailed comparison of several 5.56x45mm NATO ammunition types used by the US Navy, focusing on their terminal ballistics and penetration capabilities. The Mark 255 Mod 1, featuring a compressed copper polymer core, is highlighted for its rapid fragmentation and potential for large wound channels, while the M855A1 is noted for its extreme penetration. The M855 Green Tip and Mark 262 Mod 1 are also tested for comparison.

Quick Summary

The Mark 255 Mod 1 5.56mm round is distinguished by its compressed copper polymer core, designed for rapid fragmentation to minimize penetration and ricochets while maximizing wound channel size. This contrasts with traditional lead-core bullets and offers unique terminal ballistics.

Chapters

  1. 00:00Introduction: Mark 255 Mod 1 White Tip
  2. 00:25Comparison Ammunition: M855 Green Tip
  3. 01:33Comparison Ammunition: M855A1
  4. 02:29Comparison Ammunition: Mark 262 Mod 1
  5. 03:28Focus: Mark 255 Mod 1 Ballistics
  6. 05:31Testing Medium: Concrete Pavers
  7. 06:05Environmental Observations
  8. 09:07Testing Medium: Steel Plates
  9. 11:03Testing Medium: Ballistic Gel
  10. 11:14Ballistic Gel: M855 Green Tip
  11. 12:07Ballistic Gel: M855A1
  12. 12:41Ballistic Gel: Mark 262 Mod 1
  13. 13:37Ballistic Gel: Mark 255 Mod 1 vs Competition
  14. 14:37Conclusion: Most Lethal 5.56 Navy Round?

Frequently Asked Questions

What makes the Mark 255 Mod 1 5.56mm round unique?

The Mark 255 Mod 1 features a compressed copper polymer core instead of a traditional lead core. This design is intended to cause rapid fragmentation upon impact, reducing penetration and ricochet risks while creating significant wound channels.

How does the M855A1 5.56mm round perform in penetration tests?

The M855A1, with its prominent steel tip, demonstrates exceptional penetration capabilities. It easily pierces through lumber and steel targets, and in ballistic gel tests, it creates a very deep and destructive wound channel.

What is the difference between the M855 Green Tip and the M855A1?

The M855 Green Tip has a steel penetrator in its tip, while the M855A1 features a more pronounced steel tip and a different internal construction. The M855A1 generally exhibits superior penetration and terminal ballistics compared to the M855 Green Tip.

Does the Mark 262 Mod 1 5.56mm round penetrate steel targets?

No, the Mark 262 Mod 1, a 77-grain hollow point without a dedicated penetrator, did not penetrate the steel targets used in the test. It showed limited penetration into ballistic gel compared to the M855 variants.

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