RECOIL's The Best Suppressor Test | 5.56 NATO - The Setup

Published on March 5, 2025
Duration: 10:48

RECOILtv conducts a semi-scientific suppressor test for 5.56 NATO firearms, evaluating weight, decibel levels (muzzle and ear), subjective sound quality, velocity, and back pressure. The test utilizes American Defense Manufacturing AR-15s with 12.5-inch barrels and Federal American Eagle 55-grain ammunition, employing calibrated Larson Davis meters and a 'Lethal Optometrist' blindfold test. Durability is assessed via the SOCOM Table 2 protocol, firing 240 rounds under demanding conditions.

Quick Summary

RECOILtv's 5.56 NATO suppressor test evaluated weight, muzzle/ear decibels, sound quality, velocity, and back pressure. Objective measurements used Larson Davis meters, while subjective assessment occurred during the 'Lethal Optometrist' blindfold test. Durability was confirmed via the demanding SOCOM Table 2 protocol.

Chapters

  1. 00:00Introduction: The Best Suppressor Test
  2. 01:09Testing Parameters: Decibels, Weight, Gas
  3. 03:13Test Setup: ADM Rifles & Federal Ammo
  4. 05:02Sound Measurement Methodology
  5. 07:12Subjective Sound: The 'Lethal Optometrist' Test
  6. 09:22Durability Test: SOCOM Table 2

Frequently Asked Questions

What criteria were used in RECOILtv's 5.56 NATO suppressor test?

The test evaluated suppressors based on weight (including mounts), objective decibel levels at the muzzle and shooter's ear, subjective sound quality and tone, projectile velocity, and back pressure (gas blowback).

How did RECOILtv measure suppressor sound levels objectively?

Objective sound testing utilized calibrated Larson Davis SoundExpert 821 decibel meters. Measurements were taken both 1 meter from the end of the suppressor and at the shooter's ear position to capture different acoustic perspectives.

What was the 'Lethal Optometrist' test for suppressors?

This was a blindfolded test designed to assess the subjective sound signatures and tonal qualities of different suppressors. It aimed to determine which sounds were perceived as more pleasing or effective by the end-user, often beyond simple decibel reduction.

How was the durability of the suppressors tested?

Durability was assessed using the SOCOM Table 2 protocol. This involved firing 8 magazines (240 rounds) through the test rifles at varying rates, including full-auto, to test the suppressors' heat management and structural integrity under stress.

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