A foot-pound is a measurement unit of Muzzle strength. this is the power that the pellet has when it exits from the barrel of the gun. In widespread, one foot-pound is the amount of strength that is used to do a project even as applying the force of 1 pound on an object to move it one foot away.
beneath we have provided the formula that is used to calculate the FPE:
FPE = (V)^2 X (W / 450240)
Suppose the weight of the pellet is \(15.2 \, \text{grains}\), and the velocity is \(900 \, \text{fps}\). How can we calculate the FPE (Foot-Pounds of Energy) of the airgun?
Solution:
Given that:
Using the formula for FPE:
\[ \text{FPE} = \frac{V^2 \cdot W}{450240} \]
Substituting the values:
\[ \text{FPE} = \frac{(900)^2 \cdot 15.2}{450240} \]
\[ \text{FPE} = \frac{810,000 \cdot 15.2}{450240} \]
\[ \text{FPE} = \frac{12,312,000}{450240} \]
\[ \text{FPE} = 27.35 \]
The Foot-Pounds of Energy (FPE) is \(27.35 \, \text{ft-lb}\).
let's imagine we have to shoot an 8-grain at 800 fps then we will calculate the square of 800 and multiply it with eight. Now divide it with the constant 450240 and you will get eleven.371712. in case you need to store time, then you could get the assist of a free airgun calculator. it will assist you to perform the conversion in a depend of seconds.
The calculation of muzzle electricity approach to determine the amount of adverse strength of the pellet at which it comes out from the barrel. Its also referred to as Kinetic power and the unit used for this size is Foot Pound force or ft lb.
