Smyth Busters: Cleaning .22 Rimfire Barrels

Published on June 23, 2020
Duration: 3:09

This guide, presented by experts from Brownells, debunks common myths about cleaning .22 Long Rifle barrels. It emphasizes that frequent cleaning of the action is crucial for semi-automatic reliability, while barrel cleaning is only necessary when accuracy diminishes. Improper techniques, not cleaning itself, are the primary cause of barrel damage.

Quick Summary

Experts from Brownells advise that .22 Long Rifle barrels only require cleaning when accuracy degrades. Frequent cleaning of the action is crucial for semi-automatic reliability, while barrel cleaning should be reserved for when group sizes increase. Avoid muzzle cleaning to protect the barrel crown.

Chapters

  1. 00:00Intro: .22 Barrel Cleaning Myths
  2. 00:20Myth: Cleaning Ruins the Barrel
  3. 00:36Frequency of Cleaning
  4. 00:50Abrasive Primers Myth
  5. 01:18Lead Fouling and Accuracy
  6. 02:03Cleaning the Action vs. the Barrel

Frequently Asked Questions

When should I clean the barrel of my .22 Long Rifle?

According to Brownells experts, the barrel of a .22 LR firearm only needs cleaning when accuracy begins to degrade, indicated by larger group sizes. Frequent cleaning is generally unnecessary with modern ammunition unless specific fouling issues arise.

What are common mistakes when cleaning .22 rimfire barrels?

A primary mistake is cleaning from the muzzle, which can damage the barrel's crown and negatively impact accuracy. Experts also caution against over-cleaning, as it's often unnecessary with modern, cleaner-burning ammunition.

How often should I clean the action of a semi-automatic .22 rifle?

The action of a semi-automatic .22 rimfire rifle requires more frequent cleaning than the barrel. This is due to the buildup of carbon and lubricant, which can lead to malfunctions and reliability issues.

Is lead fouling a significant concern for .22 LR barrels?

Experts suggest that lead fouling is typically not a major concern for .22 Long Rifle barrels at standard velocities, unless the bore is already in a pitted condition. Accuracy degradation is a more common indicator for barrel cleaning needs.

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