I'd shoot em in any .357mag, and not worry.
Modern 38 Special brass is much stronger than is necessary for the loads it is called upon to contain. The reason 357 Magnum brass is 1/8" longer is not to create a case that can handle Magnum loads better, 357 Magnum brass is 1/8" longer to create a case that can not be unintentionally chambered in 38 Special revolversPlease do not confuse my use of a .357 gun to shoot .38 Special cartridges. It is STILL a .38 Special cartridge, even when shot out of a .357 gun, and those 38 Special cartridge limitations are from 5.6gr to a max of 6.2gr, and at 7.2gr in a 38 Special cartridge it is WAY OVER the max limit. In other words it would produce way too much pressure during combustion, and quite possibly blow the cylinder, if not the barrel as well.
I just bought myself a second set of Lee dies and a extra tool head because I hate going through all that re-adjustment every time from 38->357->38->357->38->357 etc.BTW, I was wondering about getting screwed up switching 38Sp to 357Mag back and forth. Paranoid to say the least, but it has paid off.
I just bought myself a second set of Lee dies and a extra tool head because I hate going through all that re-adjustment every time from 38->357->38->357->38->357 etc.