Recoil can best be related to Newton's third law of motion (for each action there is an equal and opposite reaction).

The formula for calculating recoil is:
Recoil calculation formula
If you're interested in recoil you may calculate it for any gun with the following formula:

E= 1/2(Wr/32)(WbxMv+4700xWp/7000xWr) squared

E= energy in foot pounds
Wr= weight of gun in pounds
Wb= weight of shot and wad in grains
Mv= muzzle velocity in fps
Wp= weight of powder in grains

You will notice that chamber pressure is not a component of the recoil calculation and is only marginally related to Mv in that for a given load a higher chamber pressure will most generally result in a higher Mv.

Last edited by TwiceBarrel; 05/11/14 07:02 PM.