Custom Guns, by Verne Trester, gunsmith, Indianapolis.

Bullet Energy Calculator

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(Written in Javascript.)


Formula used:
Energy = .5 * weight * velocity^2 / 7000 / 32.175

Where weight is in grains, and velocity is in feet/second.

7000 is grains per pound, and 32.175 is acceleration due to gravity.

It can be re-written:
Energy = weight * velocity^2 / 450450

Power = weight * velocity / 1000

Questions/comments: yahoo, user: custom_guns


Bullet
Weight
(grains)
Velocity
(feet/sec)
Energy
(ft-lbs)
Power Factor
weight*velocity/1000
Webmasters: Feel free to swipe this code, or this whole page for your web site.
But please keep the sponsor links so the webmaster can make a couple dollars for his efforts.

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