Muzzle blast
The spherical pressure wave produced by the rapid expansion of propellant gases at the firearm muzzle; travels at ambient speed of sound (~343 m/s in standard air) outward from the muzzle.
The spherical pressure wave produced by the rapid expansion of propellant gases at the firearm muzzle; travels at ambient speed of sound (~343 m/s in standard air) outward from the muzzle.
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