"In my posts I was trying to figure out how to explain that you can have a suitable SD "Hardcast" wadcutter"
The Buffalo Bore Standard Pressure Short Barrel Low Flash Heavy .38 Special Ammo - 150 gr. Hard Cast Wad Cutter (850fps/M.E. 241 ft. lbs.) will punch through just about anything, far better than an expanding bullet unless it fails to expand which is more than a possibility in a .38 Special at which point it will penetrate about the same as the hard cast wadcutter but with a tiny, in comparison, meplat. That backwards loaded hollow base wadcutters are not a good choice is axiomatic. That is not worth consideration.
My question again, is what .38 Special, standard pressure or +P, does anyone think is best? We know that the 135 grain Speer Gold Dot +P will only go 8 1/2" in ballistic gelatin. That is a joke. The Corbon DPX goes 12" and would work. So what should we use? I'll put the standard pressure 150 grain hard cast wadcutter up over anything I have seen out of a .38 Special.