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2. Gun chronograph - Wikipedia

   en.wikipedia.org/wiki/Gun_chronograph

   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 non-lethal projectiles fired from items such as a paintball gun or BB gun.

3. Power factor (shooting sports) - Wikipedia

   en.wikipedia.org/wiki/Power_factor_(shooting_sports)

   Power factor ( PF) in practical shooting competitions refers to a ranking system used to reward cartridges with more recoil. Power factor is a measure of the momentum of the bullet (scaled product of the bullet's mass and velocity ), which to some degree reflects the recoil impulse from the firearm onto the shooter (see section on limitations).

4. Ballistic coefficient - Wikipedia

   en.wikipedia.org/wiki/Ballistic_coefficient

   Ballistic coefficient. A selection of bullets with different shapes, and hence, different ballistic coefficients. In ballistics, the ballistic coefficient ( BC, Cb) of a body is a measure of its ability to overcome air resistance in flight. [ 1] It is inversely proportional to the negative acceleration: a high number indicates a low negative ...

5. Chronograph - Wikipedia

   en.wikipedia.org/wiki/Chronograph

   Chronograph. An Omega Speedmaster Professional, which is commonly regarded as one of the most iconic chronographs ever produced. Gallet MultiChron Astronomic ( c. 1959 )—complex mechanical chronograph with 12-hour recording capabilities, automatic day, date, month, and moon phase display. A chronograph is a specific type of watch that is used ...

6. Aberdeen chronograph - Wikipedia

   en.wikipedia.org/wiki/Aberdeen_Chronograph

   Aberdeen chronograph. The Aberdeen chronograph was the first portable gun chronograph, an instrument for measuring the muzzle velocity and striking power of a projectile fired by a gun. It was invented in 1918 by Alfred Lee Loomis at the U.S. Army's Aberdeen Proving Ground.

7. 6.5mm Creedmoor - Wikipedia

   en.wikipedia.org/wiki/6.5mm_Creedmoor

   The 6.5mm Creedmoor was designed specifically for long-range target shooting, [7] although it has been used successfully in medium game hunting. [8] Bullet-for-bullet, the 6.5mm Creedmoor achieves a slower muzzle velocity than longer cartridges such as the 6.5-284 Norma or magnum cartridges such as the 6.5mm Remington Magnum.