We Accuracy Tested the SCAR, SIG MCX-SPEAR, and Steyr DMR: Here’s the Truth

Published on April 5, 2025
Duration: 17:38

This review compares the accuracy of three modern 7.62 NATO battle rifles: the FN SCAR-H, SIG MCX-SPEAR, and Steyr DMR. The Steyr DMR emerged as the most accurate, averaging 1.29 MOA, followed by the SIG MCX-SPEAR at 1.38 MOA, and the FN SCAR-H at 1.50 MOA. All rifles demonstrated impressive accuracy for piston-driven platforms, with discussions covering gas systems and their impact on performance.

Quick Summary

The Steyr DMR was the most accurate rifle tested, averaging 1.29 MOA. The SIG MCX-SPEAR followed at 1.38 MOA, and the FN SCAR 17 averaged 1.50 MOA. All three 7.62 NATO rifles proved exceptionally accurate for piston-driven combat platforms.

Chapters

  1. 00:15Introduction: 3 Next-Gen .308 Battle Rifles
  2. 01:35Gas Systems & Accuracy Theory
  3. 03:43FN SCAR-H Accuracy Testing
  4. 06:09SIG MCX-SPEAR Accuracy Testing
  5. 08:14Steyr DMR Accuracy Testing
  6. 11:45Final Comparison & Conclusion

Frequently Asked Questions

Which rifle was the most accurate in the TFB TV test?

The Steyr DMR was the most accurate rifle tested, achieving an average accuracy of 1.29 MOA. It also produced the single best five-shot group at 100 meters, measuring 1.14 MOA.

What were the accuracy results for the FN SCAR 17 and SIG MCX-SPEAR?

The FN SCAR 17 (SCAR-H) averaged 1.50 MOA, while the SIG MCX-SPEAR averaged 1.38 MOA. Both demonstrated strong accuracy for piston-driven combat platforms.

How do piston systems compare to direct impingement for accuracy?

Piston systems are generally considered cleaner and cooler running. However, they are sometimes perceived as less accurate because the moving parts above the barrel can introduce harmonics that affect precision.

What caliber were the rifles tested chambered in?

All three rifles tested—the FN SCAR 17, SIG MCX-SPEAR, and Steyr DMR—were chambered in 7.62x51 NATO, also commonly known as .308 Winchester.

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