Kinetic energy = 1/2 * mass * v^^2
Joules = 0.5 * Kg * M/s * M/s
Ft-lb ain't exactly SI :-)
It really is about time that FT went metric and then we would use real MOA not "Shooters' MOA"
800fps = 243.84 M/s
7.9grains = 0.51191g = .00051191Kg
Energy = 15.2J
If it was 8.4grains then 16.18J for "800fps"
Velocity squared really makes the difference when it comes to errors or hammer settings.
Grain of what? wheat? rice? presumably it was some cereal crop :-)
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