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Muzzle energy - Definition and Overview |
| Related Words: Antlia, Asphyxiate, Beak, Beezer, Bilbo, Bill, Bond, Bonds, Bridle, Bugle, Camisole, Censor, Chaps, Choke, Chops, Collar, Cork |
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Muzzle energy is the measurement of the kinetic energy of a bullet as it is expelled from the barrel of a firearm.
In the Imperial and U.S. customary unit system, muzzle energy is quoted in units of foot-pounds:
- e = v * v * m / 450240
- where
- e is the muzzle energy of bullet (in foot pounds)
- v is the velocity of bullet (in feet per second)
- m is the mass of bullet (in grains)
Typical muzzle energy levels of different types of firearms are:
| Firearm | Caliber | Muzzle Energy
(ft lbs)
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| air gun | .177 | 5
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| rifle (LR cartridge) | .22 | 100
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| rifle | .223 | 2500
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| pistol (semi-auto) | 9 mm | 400
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See Also
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