Muzzle energy is calculated by the formula E=MV2/450400, for
english UOM system & E=MV2/2000 for metric where:
M is bullet mass in grains or gramms depending on the UOM, 0 < M < 2000.00 grains or 130 gramms;*
V is the bullet velocity in ft/sec, 0 < V < 5000.00 fp/sec or 1500 m/sec;*
450400 comes from 7000 ( grains in lb ) by g=32.17 by 2. for english UOM;
2000 comes from 1000 ( grmms in kg ) by 2. for metric UOM;
* - Only first two decimal digits are used.
For detailed instructions how to use the tool click Help.
Switch to the Power Factor Calculator for this data.
- ME - Muzzle Energy;
- MV - Muzzle Velocity;
- BM - Bullet Mass;
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