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Rifles, Reloading, Optics, Equipment
Reloading
Setting neck tension with expander mandrel and bushing die questions
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<blockquote data-quote="cdherman" data-source="post: 1881445" data-attributes="member: 12282"><p>Notice that the sinclair mandrel has an ogive to it. It goes in smoothly. None of the jerk and pull that can happen with an expander ball, especially if the neck is not perfectly lubed.</p><p></p><p>The Sinclair mandrel, coupled with careful attention to not over size (by using bushings), sides in with just a little graphite. That means I can load that case right away. If I had used wax or greasy lube, I'd need to clean the case first.</p><p></p><p>And for the crowd that says you can get more perfection by turning necks, my reply is that stuff is for benchrest shooters and perhaps a people that make a living this way. But me, I like to shoot some too, and turning necks is a pain..... But I agree that fundamentally, a perfectly turned neck, custom tight chamber and bushing dies to achieve exact identical tension on the bullet is probably better by some fractional small percentage. Just maybe not enough to matter.</p></blockquote><p></p>
[QUOTE="cdherman, post: 1881445, member: 12282"] Notice that the sinclair mandrel has an ogive to it. It goes in smoothly. None of the jerk and pull that can happen with an expander ball, especially if the neck is not perfectly lubed. The Sinclair mandrel, coupled with careful attention to not over size (by using bushings), sides in with just a little graphite. That means I can load that case right away. If I had used wax or greasy lube, I'd need to clean the case first. And for the crowd that says you can get more perfection by turning necks, my reply is that stuff is for benchrest shooters and perhaps a people that make a living this way. But me, I like to shoot some too, and turning necks is a pain..... But I agree that fundamentally, a perfectly turned neck, custom tight chamber and bushing dies to achieve exact identical tension on the bullet is probably better by some fractional small percentage. Just maybe not enough to matter. [/QUOTE]
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Setting neck tension with expander mandrel and bushing die questions
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