Barrel Flex & Impact Shift on the Sig Spear LT (vs URGI)

Published on May 2, 2024
Duration: 16:33

The Sig Spear LT exhibits noticeable barrel flex and point of impact (POI) shift under external force, with the first shot after flexing deviating significantly. However, the rifle tends to return to its original zero after 1-2 subsequent shots. Compared to the Geissele URGI, the Spear LT showed greater POI shift, though it remains practically accurate for combat distances if not abused.

Quick Summary

The Sig Spear LT exhibits noticeable barrel flex, causing a significant POI shift on the first shot after stress. However, it tends to return to zero after 1-2 follow-up shots. Compared to the Geissele URGI, the Spear LT shows greater flex.

Chapters

  1. 00:00Intro: Sig Spear LT Controversy
  2. 01:38Context: Social Media Flex Claims
  3. 02:56Baseline Accuracy Test
  4. 03:26Manual Barrel Flex Test (Right)
  5. 05:23Arisaka Clamp Effectiveness
  6. 08:14Day 2: Suppressed Flex Testing
  7. 11:42Flex String Data Analysis
  8. 13:11Comparison: Sig Spear LT vs URGI
  9. 14:51Final Verdict on Flex

Frequently Asked Questions

Does the Sig Spear LT have barrel flex issues?

Yes, the Sig Spear LT exhibits noticeable barrel flex. When manually torqued, the first shot after the flex can shift significantly, though subsequent shots tend to return to the original zero after 1-2 rounds.

How does the Sig Spear LT's barrel flex compare to the Geissele URGI?

In comparative testing, the Geissele URGI showed considerably less point of impact shift (under 1 inch) when subjected to similar manual barrel flex compared to the Sig Spear LT.

Can the Sig Spear LT maintain practical accuracy despite barrel flex?

Yes, the hosts conclude that while the flex is real and higher than some competitors, the Sig Spear LT remains practically accurate for combat distances if the rifle is not intentionally abused or subjected to extreme forces.

What is MOA in firearms testing?

MOA stands for Minute of Angle, a unit of angular measurement. One MOA at 100 yards corresponds to roughly 1.047 inches, commonly rounded to 1 inch for practical firearm accuracy discussions.

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