JBM Small Arms Ballistics
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JBM - Calculations - Ballistic Coefficient (Time)

This calculator finds the ballistic coefficient of a bullet fired over a known distance. Main input variables are the distance, the muzzle velocity, drag function, time of flight and atmospheric conditions. The time must be measured very accurately (to the nearest microsecond). Explanation of terms.


Near Velocity (500-4500 ft/sec) [3000.0]
Time (0.000001-1.0 sec) [0.103000]
Distance (1-6000 feet) [300.0]
Drag Function [G1]

Temperature (-40-140 °F) [59]
Pressure (15-40 inches Hg) [29.92]
Relative Humidity (0-100%) [0]
Altitude (-1000-15000 feet) [0]
Standard Atmosphere at altitude Corrected Pressure


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