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Rifles, Reloading, Optics, Equipment
Reloading
Neck tension?
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<blockquote data-quote="woods" data-source="post: 836889" data-attributes="member: 6042"><p>Hey Mike</p><p></p><p>Sinclair says</p><p></p><p>" Our neck turning tool mandrels measure approximately about .002"" less than the bullet diameter for the caliber. Our expander mandrels are made .001"" larger than the turning mandrels."</p><p></p><p>So that would make the expander mandrels .001" less than bullet diameter</p><p></p><p>So a good method would be to size with the bushing die smaller than caliber and then use the expander mandrel?</p><p></p><p>Is there a best case scenario for the size to size the case down to with the bushing. IOW size the ID down to .003" below caliber and then use the expander. Or .002", .004"? Or does it matter at all?</p><p></p><p>Don't want to hijack the thread, but I have a 375 Ruger full length die that sizes the ID down to .361" without the expander. Would it be beneficial to get a Sinclair die and expander mandrel? Or is that too much expansion to get good results?</p><p></p><p>BTW KiloTango, not nitpicking but I think you're mission a zero</p><p></p><p>.2875"-.286"=.00175"</p><p></p><p>That .286" should give you .003" bullet grip which I shoot all the time and prefer. As long as it does not cause runout from too much seating pressure, which you can aid with dry lube, a good chamfer and a good seating die.</p></blockquote><p></p>
[QUOTE="woods, post: 836889, member: 6042"] Hey Mike Sinclair says " Our neck turning tool mandrels measure approximately about .002"" less than the bullet diameter for the caliber. Our expander mandrels are made .001"" larger than the turning mandrels." So that would make the expander mandrels .001" less than bullet diameter So a good method would be to size with the bushing die smaller than caliber and then use the expander mandrel? Is there a best case scenario for the size to size the case down to with the bushing. IOW size the ID down to .003" below caliber and then use the expander. Or .002", .004"? Or does it matter at all? Don't want to hijack the thread, but I have a 375 Ruger full length die that sizes the ID down to .361" without the expander. Would it be beneficial to get a Sinclair die and expander mandrel? Or is that too much expansion to get good results? BTW KiloTango, not nitpicking but I think you're mission a zero .2875"-.286"=.00175" That .286" should give you .003" bullet grip which I shoot all the time and prefer. As long as it does not cause runout from too much seating pressure, which you can aid with dry lube, a good chamfer and a good seating die. [/QUOTE]
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Neck tension?
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