GREEN TIP Into Ballistic Gel

Published on September 22, 2025
Duration: 0:45

This video demonstrates a terminal ballistics test of M855 Green Tip 5.56x45mm NATO ammunition fired from a suppressed AR-15. The test involves shooting the projectile into ballistic gel to observe wound channel characteristics, including temporary and permanent cavities. The instructor, demonstrating high authority, notes the ammunition's availability to civilians despite its reduced military adoption in favor of M855A1.

Quick Summary

M855 Green Tip is a 5.56x45mm NATO cartridge with a 62-grain projectile and steel penetrator core, known for civilian availability. In ballistic gel tests, it penetrates about 3 inches before expanding up to 2 inches wide, eventually exiting the block. While still popular, it's largely been replaced by M855A1 in military applications for improved terminal performance.

Chapters

  1. 00:00Introduction to Green Tip Ammo
  2. 00:12Ballistic Gel Test Setup & Firing
  3. 00:18Wound Channel Analysis & Bullet Effects

Frequently Asked Questions

What is M855 Green Tip ammunition?

M855 Green Tip is a 5.56x45mm NATO cartridge commonly used in AR-15 style rifles. It features a 62-grain projectile with a steel penetrator core, designed for enhanced barrier penetration. While widely available to civilians, it has been largely superseded by M855A1 in military use.

How does M855 Green Tip perform in ballistic gel?

In a ballistic gel test, M855 Green Tip 62-grain ammunition fired from a suppressed AR-15 penetrated approximately 3 inches before significant expansion, creating a temporary cavity up to 2 inches wide. The bullet eventually exited the gel block.

What is the difference between M855 and M855A1 ammunition?

M855A1 is an improved version of the M855 Green Tip round, featuring a redesigned projectile for better terminal ballistics and barrier penetration. While M855 is still common among civilians, M855A1 is the current standard issue for many military units.

What does terminal ballistics analysis involve?

Terminal ballistics analysis studies how a projectile behaves upon impact with a target. This often involves testing in media like ballistic gel to observe penetration depth, expansion, fragmentation, and the creation of temporary and permanent wound cavities.

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