Sounds like a good plan.

From what I hear, Zero bullets are fine, maybe better than the Hornady's.

I always size and trim new 357 brass before use.

I usually seat the shoulder flush and roll crimp over the shoulder for this combination. I've seated a little out and taper crimped too....it seems the roll crimp gives me better accuracy.....yours may differ...
Both ways work.

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I'd like to agree with you BUT