Proof Research 16” AR-15 Barrel – The Best Yet? (30-Shot Group Tests)

Published on June 18, 2025
Duration: 17:45

This video provides an in-depth, data-driven review of the Proof Research 16-inch AR-15 barrel, featuring rigorous 30-shot group testing with multiple ammunition types. Instructor Preston Moore, demonstrating high expertise through detailed mechanical inspections and borescope analysis, concludes that this barrel is among the most accurate tested to date, consistently outperforming competitors.

Quick Summary

The Proof Research 16" AR-15 Barrel, tested by Preston Moore, achieved exceptional accuracy, including a 1.257 MOA 30-shot group with Federal Gold Medal 77gr SMK and a 1.979 MOA group with IMI Razor Core 77gr SMK. Its 416R stainless steel construction, 1:7 twist, and .223 Wylde chamber contribute to its high performance.

Chapters

  1. 00:00Introduction and Overview
  2. 00:16Technical Specifications
  3. 00:28Mechanical Gauging and Inspection
  4. 01:58Borescope Analysis
  5. 03:57Testing Methodology and Setup
  6. 06:09Ammunition Testing: Winchester M193
  7. 08:41Ammunition Testing: IMI Razor Core 77gr
  8. 10:30Ammunition Testing: Federal Gold Medal 77gr
  9. 12:58Ammunition Testing: Black Arc NAS3 262 Alpha
  10. 14:35Final Results and Summary

Frequently Asked Questions

What are the key technical specifications of the Proof Research 16" AR-15 Barrel?

The barrel is 16 inches long, made from 416R Stainless Steel, features a .223 Wylde chamber, mid-length gas system, 1:7 twist rate, 1/2x28 muzzle threads, and 4-groove single-point cut rifling.

How was the accuracy of the Proof Research 16" AR-15 Barrel tested?

Accuracy was evaluated using rigorous 30-shot group tests fired over four minutes to simulate match heat, providing statistically significant data. Velocity was tracked using a Garmin Xero C1 Pro chronograph.

What was the best performance achieved with the Proof Research 16" AR-15 Barrel?

The best performance was a 1.257 MOA 30-shot group using Federal Gold Medal 77gr SMK ammunition, with an average velocity of 2476 FPS. This result placed it as the top performer for that load.

Did the borescope inspection reveal any issues with the Proof Research barrel?

The borescope revealed tool marks in the chamber neck and some roughness in the throat area. These were noted for comparison with other barrels, but the barrel still performed exceptionally well overall.

Related News

All News →

More Reviews Videos You Might Like

More from Preston Moore

View all →