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higgite · December 8, 2012, 01:16 AM

.3031" ID doesn't sound right to me, but I'm no expert. My Lee collet die sizes 308Win case necks to .306-.307" ID. Are you sure you have the right mandrel? The correct mandrel for .308Win is .3055" in diameter.

December 8, 2012, 01:16 AM	#2
higgite Senior Member Join Date: October 21, 2010 Posts: 1,025	.3031" ID doesn't sound right to me, but I'm no expert. My Lee collet die sizes 308Win case necks to .306-.307" ID. Are you sure you have the right mandrel? The correct mandrel for .308Win is .3055" in diameter.