At a quick glance in a loading manual I find a load giving 1 1/8oz of shot 1310fps @ 8,500psi using 27grs powder & another load giving that same 1 1/8oz only 1145fps but @ 9,000 psi using 18grs of a much faster powder. Should be obvious to anyone the lower pressure load is going to "Kick" much more severe . With "No" pressure there would be no movement, thus no recoil. The recoil though is not relative to the pressure but to the movement. The heavier the weight moved and/or the faster it is moved the higher the recoil.
