9mm case length .754" ...........124gr at 1150 to 1200 fps
38 Super case length .865 " ..... 124gr at 1280 to 1385 fps but Buffalo has the 124gr at 1450 fps c/o a 5" barrel if you need to try them............

However these bullets are .355 diamiter and the .38 JHP is usually .357 diamiter so you might get gas blow by and accuracy might not be that good.

I tried 38 cases with the 9mm bullets and after testing five test loads, I kept them for the 9mm due to poor accuracy at 25 yards, and I just don't think a .355 factory load in a .357 gun is the right thing to do.