Thread: RANGE CHECKS
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Old 09-01-2020, 12:44 AM
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Engineer1911 Engineer1911 is offline
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Force = mass X acceleration along with the equations for velocity, distance, time and acceleration.

KNOWNS: chronograph velocity, barrel length, bullet weight.

Ignored factors: Perfect gas law, changing volume, high temperature & high pressure mass flow of expanding powder gas.

At 12:40 AM I'm not looking for velocity, time, acceleration equations I haven't used in 40 years. Some place in the distant past there was a classroom discussion about firing 16" battleship guns. In Physics for Engineers, a Navy guy who was on the New Jersesy (near Viet Nam) asked a question and we were off to the races. The know factors were impressive; bullet weight in thousands of pounds, barrel length in feet, fired distance in miles.
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