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Rifles, Reloading, Optics, Equipment
Reloading
Turn necks on virgin brass?
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<blockquote data-quote="Philip J Theodhor" data-source="post: 1771292" data-attributes="member: 111223"><p>The way I do it using virgin brass is first using an Expander Die open the case necks Id to .001" over the mandrel ID.</p><p>Using a body die and the competition shell holder set bump shoulder back by. 002"</p><p>Next anneal the brass brass.</p><p>When cool to the touch neck turn the annealed case removing -0002" - .0005 "of material from necks O.D.(just enough to clean up the high spots) </p><p>Tumble brass in steel pin media.</p><p>Dry brass in case dryer.</p><p>Now using my match grade FL resizer die with bushing inserted size the neck only. In this manner all debris is removed from the necks ID before insertion into the die</p><p>Prime cases and continue to reload to the established C.O.A.L. using the correct tools.</p><p>Finally check bullet to case neck concentricity and adjust as needed.</p><p>I know that this post is a few years to late, however I felt that the use of an Expander Die and oversize mandrel has reduced case run out (T.I.R) and egocentricity has improved as well. Did I mention that I am now getting even neck tension due in fact to less case run out while neck turning.I can not say enough good things about the Expander Die and correct neck turning oversize mandrel. As an added plus my group size has diminished significantly !</p></blockquote><p></p>
[QUOTE="Philip J Theodhor, post: 1771292, member: 111223"] The way I do it using virgin brass is first using an Expander Die open the case necks Id to .001" over the mandrel ID. Using a body die and the competition shell holder set bump shoulder back by. 002" Next anneal the brass brass. When cool to the touch neck turn the annealed case removing -0002" - .0005 "of material from necks O.D.(just enough to clean up the high spots) Tumble brass in steel pin media. Dry brass in case dryer. Now using my match grade FL resizer die with bushing inserted size the neck only. In this manner all debris is removed from the necks ID before insertion into the die Prime cases and continue to reload to the established C.O.A.L. using the correct tools. Finally check bullet to case neck concentricity and adjust as needed. I know that this post is a few years to late, however I felt that the use of an Expander Die and oversize mandrel has reduced case run out (T.I.R) and egocentricity has improved as well. Did I mention that I am now getting even neck tension due in fact to less case run out while neck turning.I can not say enough good things about the Expander Die and correct neck turning oversize mandrel. As an added plus my group size has diminished significantly ! [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Turn necks on virgin brass?
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