I just did the same thing that gets my dander up on the centerfire forums, someone asking a question without any information.
I'll probably be shooting 158gr bullets in 357 and maybe around 125gr for the 38, light loads for the 38 to keep the recoil down for my wife to play with.
Do I use magnum primers for the 357 and regular small pistol primers for the 38 load? The gun is a Ruger KGP141 with a 4" barrel.
Dan Honert
Std primers should work for both. Look at Unique for a powder choice.