The biggest isseu with the 357sig is getting the dies setup correctly. That means NOT buying the RCBS dies, they still have it wrong. The 357sig headspaces on the tiny shoulder, so the dies have to be designed & setup to palse the shoulder back properly. With a plated or lead bullet, you will have to give the case a little flare to not crush the neck. Then a mild taper crimp shpuld hold the bullet in place with proper neck tension.
Proper bullet selection is hugely important. The bullet has to have enough vertical bearing surface to fully engage the short case neck. Then do NOT over crimp, that can cause a lack of case neck tension & bullet setback. You can turn the expander down 0.0005" if you aren't getting good neck tension. Then it's pretty much like reloading any straight wall case.
I won't use powders any faster than Unique in the 357sig, just in case I do get a setback. Faster powders are just not very forgiving. Really, none of the powder you have are suitable for good 357sig loads. Powders in the medium slow range, PowerPistol up thru AA#9 will work well. You can get the 2400 to go bang, but vel will suffer a bit.

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NRA Cert. Inst. IDPA CSO