.22LR vs .22HMR: Qual deles é melhor de verdade?

Published on March 3, 2026
Duration: 1:18

This expert-level guide, presented by an experienced firearms instructor, details the critical differences between .22LR and .22HMR (or .22 Magnum) cartridges. It highlights the potential dangers and malfunctions that can occur when using the wrong caliber, specifically demonstrating how .22LR can cause casing issues in a .22 Magnum firearm. The guide emphasizes the importance of proper ammunition identification for safe and effective shooting.

Quick Summary

Using .22LR in a .22 Magnum firearm is problematic because .22 Magnum cases are longer. This can cause the .22LR casing to expand, spread debris in the cylinder, and lead to significant deviations from the point of aim, compromising both safety and accuracy.

Chapters

  1. 00:00Intro to .22LR vs .22HMR
  2. 00:19Shooting .22LR Tracer Rounds
  3. 00:48Casing Differences Explained
  4. 01:10Ammo Squared Mention

Frequently Asked Questions

What is the main difference between .22LR and .22HMR ammunition?

The primary difference lies in their case length. .22 Magnum (often referred to as .22HMR) cases are longer than .22LR cases. While they share a similar bullet diameter, this length difference is crucial for proper firearm function and safety.

What happens if you fire .22LR in a .22 Magnum firearm?

Firing .22LR in a .22 Magnum firearm can cause the .22LR casing to expand improperly, leading to debris in the cylinder and significant deviation from the point of aim. This is because the firearm is designed for the longer, higher-pressure .22 Magnum case.

Why is it important to use the correct caliber ammunition?

Using the correct caliber ensures proper firearm function, accuracy, and safety. Mismatched calibers can lead to malfunctions, damage to the firearm, and potentially dangerous shooting conditions due to improper sealing and gas dynamics.

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