Some Useful Formulae…..

Some Useful Formulae for the technically minded amongst you:

Kinetic Energy = 1/2Mass x Velocity2


Momentum = Mass x Velocity


Bullet Energy = Bullet Weight in Grains x Velocity2
450,400

Recoil increases as the Square of the Velocity
e.g.: if Velocity is increased by 15%, recoil increases by 32%

( 115/110)2 = 1.3225


To calculate the optimum Twist Rate for the bullet you are using:

Twist = 150 x D2
L

where D is the nominal bullet diameter in inches
& L is the bullet length in inches