A ballistic chronograph or gun chronograph is a measuring instrument used to measure the velocity of a projectile in flight, typically fired from a gun or other firearm. The instrument is often useful for tasks such as gauging the utility of a firearm or safety of less-lethal projectiles fired from items such as a paintball gun or BB gun.
A ballistic chronograph or gun chronograph is a measuring instrument used to measure the velocity of a projectile in flight, typically fired from a gun or other firearm. The instrument is often useful for tasks such as gauging the utility of a firearm or safety of less-lethal projectiles fired from items such as a paintball gun or BB gun.
Source: Wikipedia "Gun chronograph" · CC BY-SA 4.0
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