Crimp with plated bullets and how to measure it?

[JohnB92]

So is the sulfur residue just the nature of the beast, or is there a powder that doesnt do it as bad?

I crimp like mad on revolver rounds. If they are Xtreme Bullets, you almost can't overcrimp.
The Yellow is sulfur residue. It never goes away, if you go higher pressure loads, it just blows out the barrel and you don't see it as much

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