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Old December 8, 2012, 12:12 AM   #5
Edward429451
Junior member
 
Join Date: November 12, 2000
Location: Colorado Springs, Colorado
Posts: 9,494
The formula for calculating energy is pretty simple. All you need is the bullet weight and muzzle velocity. It is:

Velocity X Velocity X Wt of the bullet in grains / 450240

For example a 230 gr bullet at 850 FPS.

850 X 850 X 230 / 450240 = 369 FT LBS energy.
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