The .22 Long Rifle (LR) cartridge is a popular choice for a variety of applications, from plinking and small game hunting to target shooting and self-defense. A key consideration for many shooters, especially those in populated areas or who value stealth, is noise reduction. This article delves into the world of quiet .22 ammo, exploring the factors influencing noise levels and reviewing some of the quietest options currently available.
Understanding the Sounds of .22 LR
The noise produced by a .22 LR round isn't solely determined by the cartridge itself. Several factors contribute to the overall sound signature:
- The firearm: The type of firearm significantly impacts the loudness. A suppressed firearm (using a suppressor or silencer) will drastically reduce the noise compared to an unsuppressed one. The firearm's design, barrel length, and even its condition can influence the sound.
- The ammunition: The type of bullet, powder charge, and casing construction all contribute to the sound produced. Subsonic ammunition, which travels slower than the speed of sound (approximately 1125 feet per second), generally produces less noise than supersonic ammunition.
- The environment: The surrounding environment plays a role. Shooting in an enclosed space will amplify the sound compared to shooting outdoors in open space. The temperature and humidity can also have a minor impact.
Subsonic vs. Supersonic Ammunition
The primary difference between quiet and loud .22 LR ammo lies in whether the bullet travels at subsonic or supersonic speeds.
- Supersonic Ammunition: Bullets exceeding the speed of sound create a sonic boom, resulting in a sharp crack. This is the most noticeable component of the gunshot sound.
- Subsonic Ammunition: Bullets traveling slower than the speed of sound avoid this sonic boom, leading to a significantly quieter report. This is the key to quieter .22 LR shooting.
Factors Affecting the Quietness of .22 LR Ammo
Beyond the subsonic/supersonic distinction, several ammunition characteristics influence noise levels:
- Powder Charge: A lighter powder charge leads to a lower muzzle velocity and thus quieter operation. However, excessively light charges can lead to inconsistent performance and reduced accuracy.
- Bullet Design: The bullet's weight, shape, and material all impact its ballistic characteristics and, consequently, the sound it produces. Hollow-point bullets may produce slightly different sounds compared to round-nose bullets, although the difference is often minor.
- Case Construction: While less impactful than the other factors, the casing material and its construction can influence noise, but these differences are subtle in .22 LR.
Top Contenders for Quiet .22 LR Ammo: A Review
While "quietest" is subjective and depends on the firearm and environment, several brands consistently deliver quieter performance:
| Brand | Model | Bullet Type | Subsonic? | Notes |
|---|---|---|---|---|
| CCI | Quiet-22 | Lead Round Nose | Yes | Known for consistent subsonic performance. |
| Remington | ThunderBolt Subsonic | Lead Round Nose | Yes | A widely available and reliable option. |
| Aguila | Super Colibri | Extremely light | Yes | Very low-velocity, ideal for suppressed use. |
| SK Standard Plus | Subsonic | Lead Round Nose | Yes | Generally good accuracy. |
Note: This is not an exhaustive list, and new quiet .22 LR ammo is constantly being developed. Always check current manufacturer specifications for the most up-to-date information.
Case Study: Comparing CCI Quiet-22 and Remington ThunderBolt Subsonic
A recent informal test comparing CCI Quiet-22 and Remington ThunderBolt Subsonic ammunition in a suppressed Ruger 10/22 showed only minor differences in perceived loudness. Both were significantly quieter than standard velocity ammunition. The key difference reported was in the felt recoil; the lighter CCI Quiet-22 had slightly less felt recoil.
Conclusion: Choosing the Quietest .22 Ammo
The quest for the "quietest" .22 LR ammunition is a multifaceted endeavor. Subsonic ammunition is crucial, but the firearm and environment play significant roles. By carefully considering the factors discussed above and experimenting with different brands and models, shooters can significantly reduce the noise produced by their .22 LR firearm. Remember always to prioritize safety and adhere to local firearms regulations. The use of a suppressor can significantly enhance quietness regardless of ammo choice, but legality must be checked before acquiring or using one.