The Bullet That Got Osama Bin Laden (Allegedly)

Published on December 29, 2020
Duration: 13:04

This video provides an expert-level examination of the Black Hills 77 Gr. OTM 5.56mm Mk 262 Mod 1 ammunition, allegedly used in the raid that killed Osama Bin Laden. The host, an experienced firearms enthusiast, demonstrates its impressive accuracy, terminal ballistics through various media including ballistics gel and pork shoulder, and fragmentation characteristics. The content highlights the importance of proper barrel twist rates for stabilizing heavy match-grade bullets and showcases the ammunition's effectiveness for special operations applications.

Quick Summary

The Black Hills 77 Gr. OTM 5.56mm Mk 262 Mod 1 ammunition is noted for its use by special operations forces and its impressive terminal ballistics. A 1:7 twist rate barrel is essential for stabilizing the heavy 77-grain bullet, ensuring accuracy and performance. Testing shows significant fragmentation and large wound cavities upon impact with soft targets.

Chapters

  1. 00:00Introduction: Black Hills 77 Gr. OTM
  2. 01:34Technical Specs: Twist Rates & BCM AR-15
  3. 03:03Accuracy Testing: Sub-MOA Group
  4. 04:03Hard Barrier & Steel Testing
  5. 05:15Terminal Ballistics: Watermelons
  6. 06:47Terminal Ballistics: Pork Shoulder
  7. 08:15Ballistics Gel Test
  8. 11:22Fragment Recovery and Analysis

Frequently Asked Questions

What makes the Black Hills 77 Gr. OTM 5.56mm ammunition special?

The Black Hills 77 Gr. OTM, also known as Mk 262 Mod 1, is renowned for its use by special operations forces and its exceptional terminal ballistics, causing significant fragmentation and large wound cavities due to its Open Tip Match design.

Why is a 1:7 twist rate important for 77-grain bullets?

A 1:7 twist rate barrel is crucial for stabilizing heavy bullets like the 77-grain OTM. This faster twist rate ensures the bullet maintains its aerodynamic stability, leading to improved accuracy and consistent performance, especially at longer ranges.

How does the 77 Gr. OTM perform on soft targets?

When impacting soft targets like watermelons, pork shoulders, or ballistics gel, the 77 Gr. OTM bullet exhibits dramatic fragmentation. This results in massive temporary wound cavities and extensive tissue damage, showcasing its effectiveness for terminal ballistics.

What kind of accuracy can be expected from Black Hills 77 Gr. OTM?

The video demonstrates the exceptional accuracy of this ammunition, achieving a sub-half-inch, three-shot group at 50 yards. This level of precision highlights its suitability for match-grade performance even with non-magnified optics.

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