natman, I believe the 22 WMR out of a rifle be close in energy to a 38 special out of a pistol.
1) The topic at hand is the 22 magnum as a PISTOL round, specifically out of revolvers.
2) It's blatantly unfair to compare rifle ballistics with pistol ballistics, unless you plan to carry a 22 magnum rifle concealed. Or for that matter to compare 22 mag ballistics out of a 6" barrel with a 4" 38 Special.
3) ENERGY IS NOT THE BE ALL AND END ALL BASIS OF COMPARISON SOME PEOPLE SEEM TO THINK IT IS.
Sorry for shouting, but I just made that same point just a few posts ago, apparently not clearly enough. If indeed the energy of a 38 special and a 22 mag out of a rifle were the same, the 38 would still
be the better round by virtue of its far greater frontal area and superior sectional density. I know it's tempting to just compare energy figures because it's easy, but in the real world terminal ballistics is a lot more complicated than that.