Ron: Perceived recoil is discussed on this thread from SS BB
http://bbs.shootingsportsman.com/viewtopic.php?t=29480&postdays=0&postorder=asc&start=30 A couple of links are given regarding the pressure curve of different powders.
Perceived or 'felt' recoil is almost impossible to define. Good 'science' is reproducible and measurable and there is no 'pain-o-meter' because pain is entirely subjective. One can measure the difference in perceived pain OF an individual but not BETWEEN individuals. One person may rate the recoil of the same shell and gun as a 7 and the next a 4. And perceived pain is highly variable and dependent on multiple external and internal physiologic factors ie. pain seems worse at night when there are fewer external stimuli. One's assessment of recoil when shooting a record Kudu vs. sighting in the .375 is entirely different. 'Felt' recoil may differ based on too much coffee that morning or too much alcohol the night before, fatigue, sleep deprivation, stress, or anxiety.
Fun to talk about though.
