The slowest bullet generally recognized is the .22 caliber Colibri (Hummingbird) round, manufactured by Aguila.
Understanding the Aguila .22 Colibri
The Aguila .22 Colibri, often known as the "Hummingbird," is a unique rimfire cartridge distinguished by its exceptionally low velocity. Unlike most standard ammunition, its design prioritizes minimal noise and power, making it stand apart in the world of firearms.
Key Characteristics and Performance
This particular cartridge achieves its low velocity due to its specific composition: it contains no traditional gunpowder. Its propulsion relies entirely on the primer's force.
| Characteristic | Details |
|---|---|
| Manufacturer | Aguila |
| Caliber | .22 |
| Name | Colibri (Hummingbird) |
| Type | Extremely light rimfire cartridge |
| Speed | Approximately 420 feet per second (FPS) |
| Propulsion | Primer-only (no gunpowder) |
| Comparative Speed | Comparable to a typical BB gun |
Why Is It So Slow?
The primary reason for the .22 Colibri's remarkably low speed is its lack of a traditional gunpowder charge. While most bullets are propelled by the rapid combustion of gunpowder, the Colibri relies solely on the energetic primer compound to push its extremely light projectile forward. This unique design results in significantly reduced muzzle velocity and, consequently, very little noise, making it suitable for discreet use in specific scenarios.
Practical Applications and Limitations
Due to its low power and velocity, the .22 Colibri is not intended for self-defense or hunting medium to large game. Its primary applications typically include:
- Pest Control: It is often used for dispatching small pests like mice, rats, or birds in enclosed areas where minimizing noise and preventing ricochets are crucial.
- Plinking: Ideal for casual target shooting at very close ranges, often in backyards or quiet environments, due to its low recoil and sound signature.
- Training: It can serve as an introductory round for new shooters to familiarize themselves with firearm handling with minimal intimidation from recoil or loud noises.
It's important to exercise caution when using the .22 Colibri, as its low energy means there's an increased risk of the bullet not fully exiting the barrel of certain firearms, particularly longer rifle barrels. This can lead to a dangerous "squib load" condition, requiring immediate attention.
For more information, discussions on the topic can be found through resources like the Quora thread: "What is the slowest bullet in the world? - Quora".
