Why you shouldn't let your rifle barrel touch cover/support.

Published on December 29, 2016
Duration: 7:46

Directly resting a rifle barrel on cover or support significantly degrades accuracy by disrupting barrel harmonics and causing flex. Demonstrations show a shift from consistent hits to multiple misses when the barrel, rather than the handguard, is used for support. Longer barrels are more susceptible to this effect due to increased leverage.

Quick Summary

Resting your rifle barrel on cover disrupts its natural harmonics and causes flex, leading to inconsistent shot placement and reduced accuracy. Use the handguard for support instead, as barrel contact can physically bend it, altering the point of impact, typically causing shots to go high.

Chapters

  1. 00:00Baseline Accuracy Demo
  2. 00:43Barrel on Cover Accuracy Test
  3. 01:06Barrel Harmonics Explained
  4. 03:23Mechanical Barrel Flex Demo
  5. 05:19Longer Barrel Flex Comparison
  6. 06:16Best Practices: Handguard Support

Frequently Asked Questions

Why should you avoid resting your rifle barrel on cover?

Resting your rifle barrel on cover disrupts its natural harmonics and causes flex, leading to inconsistent shot placement and significantly reduced accuracy. This contact can physically bend the barrel, altering the point of impact, typically causing shots to go high.

What is barrel harmonics and how does it affect shooting accuracy?

Barrel harmonics refers to the vibrations and 'whip' a barrel undergoes when a bullet is fired. When the barrel touches an external object like cover, these vibrations are dampened or altered, preventing the barrel from returning to a consistent position, thus affecting accuracy.

What is the correct way to support a rifle when shooting from cover?

The correct way to support a rifle when shooting from cover is to use the handguard or a dedicated shooting rest. Avoid resting the barrel directly on the cover, as this introduces instability and negatively impacts accuracy due to barrel flex and harmonic disruption.

Does barrel length affect how much it flexes when resting on cover?

Yes, longer barrels tend to flex more when rested on cover. The increased length provides more leverage, making them more susceptible to bending and point-of-impact shifts compared to shorter barrels under similar pressure.

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