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Old January 15, 2008, 02:44 PM   #16
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Join Date: September 26, 2005
Posts: 909
I stand by what I say .. anyone using a roll crimp, esp a heavy one on revolver cartriges should trim .. If not, you don't get a uniform crimp and if the die is adjusted to a short case, then pressures will be high on a case that might be longer due to a very heavy crimp.. if it is adjusted on a long case, a short one might get no crimp at all
You're absolutely right, but I think it depends on what you're trying to do--for my plinking ammo it just doesn't make enough difference, but if I were trying for the utmost in accuracy then it certainly would be something I'd do.

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