The Only SD load that was a non-+P load that expanded in a 2" 38 revolver was.....

the Hornady 110 FTX Critical Defense load that did 858 fps.

If I had to use a standard loading in my J frame 2" for a SD load

it would be a 148 gr for fast follow up shots or a 158 gr LSP design for winter and heavy clothing.

If your old weapon has a 4" barrel, the standard loads will work a lot better.

Good luck.