FN15 + ACOG to 500yds: Practical Accuracy (FN15 Standard rifle)

Published on September 27, 2018
Duration: 4:45

This video details a practical accuracy test of the FN15 M4A1 rifle with a Trijicon TA-31 ACOG optic, engaging targets from 150 to 500 yards. The test, conducted by 9-Hole Reviews, emphasizes the impact of environmental factors like wind and temperature on long-range accuracy. The analysis highlights the M4A1's effective range limitations compared to an M16A4, despite the ACOG's rapid target acquisition capabilities.

Quick Summary

The FN15 M4A1, equipped with a Trijicon TA-31 ACOG, was tested for practical accuracy to 500 yards. Under 12-19 mph winds and 97Β°F heat, the rifle achieved a 72.5% hit rate. The analysis notes the M4A1's shorter barrel limits its effective range compared to an M16A4, despite the ACOG's rapid acquisition capabilities.

Chapters

  1. 00:00Introduction and Equipment Overview
  2. 00:56Shooting: 150 to 350 Yards
  3. 01:57Shooting: 400 to 450 Yards
  4. 02:43500 Yard Engagement and Cease Fire
  5. 04:07Analysis and Conclusion

Frequently Asked Questions

What is the effective range of the FN15 M4A1 with an ACOG optic?

The FN15 M4A1, when tested with a Trijicon TA-31 ACOG, demonstrated practical accuracy challenges beyond 350 yards, with significant holdover adjustments needed for 500-yard engagements due to its shorter barrel and environmental factors.

How does wind affect accuracy at 500 yards with an FN15 M4A1?

During the test, winds of 12-19 mph significantly impacted accuracy at 500 yards, requiring precise holdover adjustments. The video shows misses occurring due to wind, highlighting its critical role in long-range shooting.

What ammunition was used in the FN15 M4A1 accuracy test?

The FN15 M4A1 was tested using Fiocchi 55gr FMJ BT .223 Remington ammunition. This common ball round was used to assess the rifle's practical accuracy under field conditions.

What are the key differences between an M4A1 and an M16A4 for long-range accuracy?

The primary difference affecting long-range accuracy is barrel length. The M16A4's longer barrel generally provides a higher muzzle velocity and thus a flatter trajectory, extending its effective range compared to the shorter-barreled M4A1.

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