+P .38 Spl's
Joepa--I understand that for factory loads, it's the same brass except for the headstamp.
Scottys1 makes a VERY good point: When you reload the brass, LABEL the loads so's you know what you've got! ('Course you do that with ALL yr loads--don't you?)
And of course use the +P's only in a modern revo in good condition.