Are 5.56 MATCH Bullets More ACCURATE Than FMJ From An AR-15?

Published on July 10, 2022
Duration: 9:51

This video conducts an accuracy test comparing 5.56 NATO FMJ and Match ammunition from an AR-15. The test reveals that Winchester M855 62gr Green Tip FMJ surprisingly outperformed the match-grade bullets in terms of group size at 100 yards. The Ruger MPR with an 18-inch barrel and 1:8 twist rate was used for the evaluation.

Quick Summary

In an AR-15 accuracy test, Winchester M855 62gr Green Tip FMJ ammunition achieved the best performance with a 0.80-inch group at 100 yards, outperforming match-grade bullets. The test used a Ruger MPR with an 18-inch barrel and 1:8 twist rate.

Chapters

  1. 00:00Introduction & Test Purpose
  2. 00:13Rifle Setup: Ruger MPR 18" 1:8 Twist
  3. 00:34Ammunition Selection: M193, M855, Frontier Match
  4. 01:35Target Setup at 100 Yards
  5. 02:17Shooting M193 55gr FMJ
  6. 02:59Shooting M855 62gr Green Tip
  7. 03:35Shooting Frontier 68gr Match
  8. 04:14Shooting Frontier 75gr Match
  9. 04:44Initial Target Inspection
  10. 05:09M193 Group Measurement (1.65")
  11. 05:27M855 Group Measurement (0.80")
  12. 05:54Frontier 68gr Group Measurement (0.89")
  13. 06:17Frontier 75gr Group Measurement & Stability Issues
  14. 07:06Test Conclusion: M855 Most Accurate
  15. 07:28Discussion on Variables & Satisfaction
  16. 08:07Ammunition Weight Pattern Analysis
  17. 08:29Viewer Engagement & Future Tests

Frequently Asked Questions

Which 5.56 NATO ammunition was most accurate from an AR-15 in this test?

In this specific accuracy test conducted at 100 yards with a Ruger MPR, the Winchester M855 62gr Green Tip FMJ ammunition proved to be the most accurate, achieving a group size of 0.80 inches.

How did 5.56 Match bullets compare to FMJ rounds in accuracy?

Surprisingly, the Winchester M855 62gr Green Tip FMJ round was the most accurate, outperforming both the Frontier 68gr and 75gr BTHP Match bullets. The 55gr M193 FMJ was the least accurate.

What rifle and optic were used for the 5.56 accuracy test?

The accuracy test utilized a Ruger MPR rifle with an 18-inch barrel, a 1:8 twist rate, and a rifle-length gas system, paired with a UTG 1-8 power optic for maximum accuracy assessment.

Can bullet weight affect accuracy in a 1:8 twist AR-15 barrel?

Yes, bullet weight is critical. The test showed that while 62gr and 68gr bullets performed well, the heavier 75gr bullet exhibited signs of instability, suggesting the 1:8 twist rate was at its limit for optimal stabilization.

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