Unique will get you there , but not current load data . In older manuals 5.4 grs was the +P 38special load using a 158gr bullet . One of my favorites is 7.0grs of HS-6 with a 158gr cast bullet . It needs a magnum primer , CCI 550 etc . I got the HS-6 load from one of the forum members here years ago . I hope this helps , Regards Paul