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Old 12-09-2009, 06:38 AM
Scott in Michigan Scott in Michigan is offline
 
Join Date: Oct 2009
Location: God's Country
Posts: 391
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I've never found the need to crimp any rifle cartridges up to and including 375 H&H. However, I usually polish the neck expander button down to 4-6 thousands under bullet diameter. That seems to create all the neck tension required. It may shorten case life as much as crimping will but it doesn't require an additional step. Semi-autos beat up the heads of cases enough that I end up discarding them long beore I get case neck splits
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