M16A2 to 500yds: Practical Accuracy ...was Eugene Stoner wrong? [ USMC experiences in Iraq ]

Published on August 28, 2022
Duration: 48:54

This review explores the M16A2's practical accuracy out to 500 yards, challenging Eugene Stoner's critique of its adjustable sights. Featuring insights from a former Marine, the video highlights the rifle's effectiveness in combat, its design evolution from the M16A1, and practical shooting techniques like 'short-stocking' for CQB. The 20-inch barrel's ballistic advantages for 5.56mm are also discussed.

Quick Summary

The M16A2's two-position rear sight includes a wide aperture for 0-200m and a pinhole for 300m, with an elevation dial adjustable to 800m. Despite critiques, veterans found the adjustable sights effective, using techniques like 'holding' for windage and 'short-stocking' for CQB, while the 20-inch barrel offered ballistic advantages.

Chapters

  1. 00:09M16A2 Rear Sight Mechanics & Veteran Intro
  2. 01:48Practical Accuracy Course Setup & Rifle Details
  3. 02:45Live Fire: Engaging Targets to 500 Yards
  4. 09:31M16A1 vs. M16A2 Design Improvements
  5. 15:01Combat Reality: Engagement Distances vs. Qualification
  6. 18:17CQB Techniques: Short-Stocking the M16A2
  7. 23:01Addressing Eugene Stoner's Sight Critique
  8. 27:51Ballistic Advantages of the 20-inch Barrel

Frequently Asked Questions

What are the key features of the M16A2's rear sight?

The M16A2 features a two-position rear sight with a wide aperture ('0-2') for close-range (0-200m) and low-light, and a smaller pinhole aperture for 300m. It also includes an elevation dial adjustable from 300m to 800m, a significant upgrade from the M16A1.

How did Marines handle the M16A2's length in close-quarters combat (CQB)?

Marines employed a 'short-stocking' technique, placing the buttstock over their shoulder to shorten the rifle's profile when entering rooms. For aiming at very close ranges, they might ignore the rear aperture and use the front sight post as a reference.

Did Eugene Stoner's critique of the M16A2's adjustable sights hold true in combat?

Veteran testimony suggests Stoner's concern about 'nervous fingers' fiddling with dials was unfounded. Marines are disciplined and maintain their zero; issues are often attributed to training failures rather than the sight system itself. 'Witness marking' is a practical solution.

What are the ballistic advantages of the M16A2's 20-inch barrel?

The 20-inch barrel optimizes the velocity of the 5.56 NATO cartridge, resulting in a flatter trajectory and improved terminal performance. This increased velocity also reduces the bullet's exposure to wind, aiding long-range accuracy.

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