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Rifles, Reloading, Optics, Equipment
Reloading
Brass neck getting thicker.
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<blockquote data-quote="Mikecr" data-source="post: 591624" data-attributes="member: 1521"><p>Yes, this is what I use, followed by shoulder bumping with a JLC(bushing removed), followed by neck expansion with the Sinclair.</p><p>I do everything seperate preferring each action handled by the best tool for it.</p><p>It's low probability(for me) in getting it all perfect in one single die even with a Harrell press.</p><p></p><p></p><p>Yes, turned necks or not the last action should always be expansion, and it is either way. When you seat bullets you're upsizing necks. It is springback from this that holds bullets(tension). But if the ID is crooked, it's difficult to seat bullets straight, given that free bullets are not rigidly forcing thickness variance outward.</p><p>The expander in most resizing dies is again floating, and causes issues for most people.</p><p>The Sinclair expander mandrel is rigid and sized right to move thickness variance outward away from free bullet seating interference. It also leaves plenty of bullet grip, even with partial neck sizing(I size ~1/2cal of neck length).</p><p>I couldn't tell you why it works better than floating die expanders, but I know it does, and it immediately reduces loaded runout as measured off bullet noses.</p><p></p><p>Remember what I said about rational pressures though. If you crank the load up for some sort of upper-upper node,, well, you'll be forced to FL size with that.</p><p>Most LR cartridges hold a rational node somewhere around 2900 to 3000fps with heavy per cal Hi-BC bullets. There is typically an even more accurate lower node down at ~2700-2800fps. If you push it to a ~3100-3200fps node, forget the Wilson. Your brass won't even fit in it.</p><p>The 284Win is a good design. Go with the mid node and the only body sizing needed will be shoulder bumping beginning about the 4th cycle and every time afterwards.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 591624, member: 1521"] Yes, this is what I use, followed by shoulder bumping with a JLC(bushing removed), followed by neck expansion with the Sinclair. I do everything seperate preferring each action handled by the best tool for it. It's low probability(for me) in getting it all perfect in one single die even with a Harrell press. Yes, turned necks or not the last action should always be expansion, and it is either way. When you seat bullets you're upsizing necks. It is springback from this that holds bullets(tension). But if the ID is crooked, it's difficult to seat bullets straight, given that free bullets are not rigidly forcing thickness variance outward. The expander in most resizing dies is again floating, and causes issues for most people. The Sinclair expander mandrel is rigid and sized right to move thickness variance outward away from free bullet seating interference. It also leaves plenty of bullet grip, even with partial neck sizing(I size ~1/2cal of neck length). I couldn't tell you why it works better than floating die expanders, but I know it does, and it immediately reduces loaded runout as measured off bullet noses. Remember what I said about rational pressures though. If you crank the load up for some sort of upper-upper node,, well, you'll be forced to FL size with that. Most LR cartridges hold a rational node somewhere around 2900 to 3000fps with heavy per cal Hi-BC bullets. There is typically an even more accurate lower node down at ~2700-2800fps. If you push it to a ~3100-3200fps node, forget the Wilson. Your brass won't even fit in it. The 284Win is a good design. Go with the mid node and the only body sizing needed will be shoulder bumping beginning about the 4th cycle and every time afterwards. [/QUOTE]
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Brass neck getting thicker.
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