Except that totally ignores acceleration rates which DO affect PERCEIVED recoil. The total recoil energy is easily calculated per above but what you FEEL is not without incorporating the impulse as has been noted elsewhere.
WtS
WtS As far as I know there is no calculation for "PERCEIVED" recoil even using the same ammunition and firearm because
everyone's
nervous system is different. I do agree wholeheartedly that stock fit, type of mechanical configuration of the gun ( gas operated, recoil operated of fixed breech) and recoil reduction system used and even the activity you are engaged in (shooting flying game birds versus shooting pattern) will definitely affect how we perceive recoil but the constant is what is measurable and perception isn't.
So the moral is get your gun fitted, shoot the ammunition your gun was intended to shoot and drink 7 year old sour mash whisky.
