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Hunting
Long Range Hunting & Shooting
264 win mag
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<blockquote data-quote="Bart B" data-source="post: 341225" data-attributes="member: 5302"><p>I'd use a 7mm die of some sort to neck a 30 caliber rimless bottleneck case part of the way down to a 6.5mm one. Then use a regular full length sizing die to size the neck down the rest of the way. This two step process ensures the end result has a neck straight with the case.</p><p></p><p>Resizing fired cases should be done with a full length sizing die with its neck lapped out to a couple thousandths smaller than a loaded round's neck diameter. This typically gives best accuracy and no expander ball's gonna bend the case neck coming back up through it. You'll need to deprime and clean your cases before they're lubed and full length sized, but doing this is worth the effort if best accuracy is your main objective. I've never seen neck sizing shoot as consistantly accurate as full length sizing.</p></blockquote><p></p>
[QUOTE="Bart B, post: 341225, member: 5302"] I'd use a 7mm die of some sort to neck a 30 caliber rimless bottleneck case part of the way down to a 6.5mm one. Then use a regular full length sizing die to size the neck down the rest of the way. This two step process ensures the end result has a neck straight with the case. Resizing fired cases should be done with a full length sizing die with its neck lapped out to a couple thousandths smaller than a loaded round's neck diameter. This typically gives best accuracy and no expander ball's gonna bend the case neck coming back up through it. You'll need to deprime and clean your cases before they're lubed and full length sized, but doing this is worth the effort if best accuracy is your main objective. I've never seen neck sizing shoot as consistantly accurate as full length sizing. [/QUOTE]
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