Introduction to the .22 Rimfire PART I

Published on February 4, 2016
Duration: 55:14

This guide, drawing from the expertise of GunBlue490, breaks down the fundamental differences between .22 rimfire cartridges. It covers historical development, naming conventions, bullet weights, velocity classifications, and the critical impact of the transonic zone on accuracy. The information is essential for understanding the nuances of this popular and versatile cartridge family.

Quick Summary

The .22 rimfire family includes .22 Short, .22 Long, and .22 Long Rifle cartridges. Standard .22 LR bullets weigh 40 grains, with velocities around 1060-1080 fps (subsonic) or 1200-1250 fps (high velocity). Accuracy can be affected by the transonic zone (60-75 yards) where bullets cross the sound barrier, potentially causing instability.

Chapters

  1. 00:00Introduction to the .22 Rimfire
  2. 00:34History of the .22 Cartridge
  3. 01:54Versatility and Global Use
  4. 04:05Ammunition Basics
  5. 07:47Bullet Weights and Naming
  6. 10:12Velocity and the Transonic Barrier
  7. 13:30Hyper-velocity Ammunition
  8. 16:30Ammunition Quality and Brands
  9. 21:12Handgun vs. Rifle Performance
  10. 23:13Conclusion: Economy of Mind

Frequently Asked Questions

What are the main types of .22 rimfire cartridges?

The primary .22 rimfire cartridges are the .22 Short, .22 Long, and the most common, the .22 Long Rifle. The .22 Short was the first, followed by the .22 Long, and the .22 Long Rifle was developed later by combining the case of the .22 Long with a heavier bullet.

How does velocity affect .22 Long Rifle accuracy?

High-velocity .22 LR rounds (1200-1250 fps) can lose accuracy when passing through the transonic zone (around 60-75 yards) as the bullet interacts with the sound barrier. Standard velocity rounds (1060-1080 fps) often maintain better stability at longer distances.

What is the difference between bulk and match-grade .22 LR ammunition?

Match-grade .22 LR ammunition, like that from Lapua or Eley, is manufactured to very tight tolerances for maximum accuracy and consistency, ideal for competition. Bulk ammunition, such as Remington Golden Bullet, is more affordable for plinking but offers less precision.

Why might .22 LR be more accurate in handguns than rifles?

High-velocity .22 LR rounds can sometimes perform better in handguns because the shorter barrel length may prevent the bullet from reaching supersonic speeds, thus avoiding the destabilizing effects of the transonic zone and maintaining a more stable flight path.

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