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Muzzle Pressure Calculator

Formula

To calculate the muzzle pressure ( $P_{muzzle}$ ):

$P_{muzzle} = \frac{m \times V^2}{2 \times A \times L}$

Where:

$P_{muzzle}$ is the muzzle pressure (Pa)
$m$ is the mass (kg)
$V$ is the velocity (m/s)
$A$ is the area (m²)
$L$ is the length (m)

What is Muzzle Pressure?

Muzzle pressure refers to the pressure exerted at the muzzle of a firearm when a projectile is fired. It is a critical factor in ballistics and affects the performance and behavior of the projectile.

Example Calculation 1

Let's assume the following values:

Mass ( $m$ ) = 0.02 kg
Velocity ( $V$ ) = 800 m/s
Area ( $A$ ) = 0.0001 m²
Length ( $L$ ) = 0.5 m

Using the formula:

$P_{muzzle} = \frac{0.02 \times 800^2}{2 \times 0.0001 \times 0.5} = 128,000,000.00 \text{ Pa}$

The muzzle pressure is 128,000,000.00 Pa.

Example Calculation 2

Let's assume the following values:

Mass ( $m$ ) = 0.05 kg
Velocity ( $V$ ) = 600 m/s
Area ( $A$ ) = 0.0002 m²
Length ( $L$ ) = 0.7 m

Using the formula:

$P_{muzzle} = \frac{0.05 \times 600^2}{2 \times 0.0002 \times 0.7} = 91,428,571.43 \text{ Pa}$

The muzzle pressure is approximately 91,428,571.43 Pa.