How Fast Does a 9mm Bullet Travel?

The velocity of a 9mm bullet, often referred to as its muzzle velocity, can vary depending on various factors, including the type of ammunition, the firearm it’s fired from, and its intended use. Here’s a general overview of the typical speeds associated with 9mm bullets:

1. Standard 9mm Ammunition:

• Standard 9mm ammunition, commonly used in handguns and semi-automatic pistols, typically has a muzzle velocity ranging from approximately 1,000 to 1,200 feet per second (fps). In metric units, this is roughly 305 to 366 meters per second (mps). The specific velocity can vary based on the manufacturer and the load.

2. Defensive and Hollow-Point Ammunition:

• Defensive or hollow-point 9mm ammunition is designed for self-defense and law enforcement purposes. These rounds may have slightly lower muzzle velocities compared to full-metal-jacket rounds to prevent over-penetration and promote controlled expansion on impact. Velocities for defensive rounds often fall within the 900 to 1,100 fps range.

3. Subsonic Ammunition:

• Subsonic 9mm ammunition is engineered to remain below the speed of sound, which is approximately 1,125 fps (at sea level and room temperature). Subsonic 9mm rounds typically have muzzle velocities in the range of 900 to 1,000 fps. These rounds are often used in suppressed firearms to reduce the noise generated.

4. +P and +P+ Ammunition:

• Some 9mm ammunition is designated as “+P” (overpressure) or “+P+” and is loaded to higher pressures to achieve increased velocities and energy. These rounds can have muzzle velocities exceeding 1,200 fps and are typically reserved for firearms rated for their use.

It’s important to note that the exact velocity of a 9mm bullet can vary significantly based on the specific brand, load, and firearm used. Additionally, factors such as barrel length and environmental conditions can influence the bullet’s velocity. Always refer to the manufacturer’s specifications and firearm recommendations for safe and accurate information regarding ammunition use.