Thank's for the reply's all. I had thought that a taper crimp would be easier on the brass than a roll crimp. Not worried about bullet jump, but do like a good crimp for consistent ignition and burn of the powder charge. I've been running into a lot of split caseing's of late, mostly nickel one's. The only time I use a heavy roll crimp with the special is with some rather heavy load's useing 2400 and that in new or no more than twice loaded caseing's.

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Stay safe people!