It is calculate on weight of projectile (ejecta), velocity and weight of the gun period. This is actual recoil, not felt recoil. Felt recoil remains subjective because we can't agree on who feels what.

Yes quite true but the felt recoil is a direct result of actual recoil as interpreted by the shooters sensory perceptions what the shooter feels and felt recoil, not measured or calculated recoil, is what has been discussed in previous posts.

Last edited by TwiceBarrel; 09/11/16 10:54 PM.