How Much Steel To Stop A 50 Cal Sniper?

Published on July 25, 2025
Duration: 13:03

This video tests the penetration capabilities of .50 BMG rounds, including standard ball and M2 Armor Piercing (AP), against various steel plates. It reveals that 3/4-inch mild steel can stop standard ball rounds, while 1.5-inch mild steel is required to embed authentic M2 AP rounds. AR550 steel, even at 1/2-inch thickness, demonstrates superior resistance, stopping both types of rounds with minimal damage.

Quick Summary

Standard .50 BMG ball rounds were stopped by 3/4-inch mild steel, while authentic M2 AP rounds required 1.5 inches to embed. A 1/2-inch AR550 steel target proved superior, stopping both types of rounds with minimal damage.

Chapters

  1. 00:00Intro: Stopping Power of 50 BMG
  2. 00:53Testing Standard 50 BMG Ball Rounds
  3. 02:49M2 Armor Piercing (AP) Round Analysis
  4. 04:11AP Rounds vs. 1-inch and 1.5-inch Steel
  5. 07:04AR550 Steel Performance Test
  6. 08:37Authentic 1943 M2 AP Testing

Frequently Asked Questions

What thickness of mild steel can stop a standard .50 BMG ball round?

Standard .50 BMG ball rounds were successfully stopped by both 5/8-inch and 3/4-inch mild steel plates during testing. The 3/4-inch plate showed only a slight bulge on the back after impact.

How much steel is needed to stop a .50 BMG M2 Armor Piercing (AP) round?

Authentic 1943 M2 AP rounds required at least 1.5 inches of mild steel to embed deeply without penetration. A 1.25-inch plate resulted in clean penetration, establishing the limit for this specific AP round against mild steel.

Does AR550 steel offer better protection against .50 BMG rounds than mild steel?

Yes, AR550 steel provides significantly better protection. A 1/2-inch AR550 steel target stopped both standard ball and M2 AP .50 BMG rounds with only minor dimpling, outperforming much thicker mild steel plates.

What rifle was used to test the .50 BMG rounds against steel?

The primary rifle used for testing was the Desert Tech HTI (Hard Target Interdiction), a bolt-action bullpup chambered in .50 BMG with a 29-inch barrel.

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