The NUMBER ONE offender of new reloaders getting into trouble with their loads is the POWDER!!
The two powders you have/have listed are NOT common .38Spl. powders.
Each powder company has the full listing of their powders, and the IDEAL loads that they are used in.
Spend $20-25.00 and buy yourself a pound of powder made for .38 Special.
If you can find it, WW-231/HP-38 is an IDEAL all around powder for most all pistol loads.
Not a rant, but USE the correct powder, and make SAFE reloads...Bill.