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Rifles, Reloading, Optics, Equipment
Reloading
Neck sizing
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<blockquote data-quote="Derek M." data-source="post: 865705" data-attributes="member: 2693"><p>Glad this topic came up and I've been considering moving towards neck sizing only. Just this week I was wondering if I could send all of my FL sizing dies back to factory and have them ream and convert to neck size only. Here's my thoughts and experiences:</p><p></p><p>FL sizing is a good thing when done properly, taking note of shoulder bump. I use RCBS precision mics for this. We all know the neck is sized during this process. </p><p></p><p>If in fact I cater to my laziness, I'd much rather just neck size and forgo all of the case lube crap and extra cleaning of the cases. Which is what I'm seriously considering. But if I do, then I wonder what will happen that day in the field when I have a feeding issue on a neck sized only loaded round. That is the one thing that has kept me from neck sizing only all of these years.</p><p></p><p>I can't see how this can't be a fact but if indeed neck sizing dies are used, there is certainly less work hardening on the cases and if less work to the brass means longer reloads, then it must extend the usefulness of the brass.</p><p></p><p>As to bushings and Lee collet dies, never had either. I chose to send my size dies back to manufacturer and have them hone the necks to .003 less than a loaded round. No collet or bushing needed. When the case is fired, it's going to expand the neck to the chamber dimension and only half of my rifles are "tight-necked." So, at the moment, my case necks when fired and sized still do not get near the work hardening they did prior to the modification when using a button. But the body still gets worked.</p><p></p><p>As to buttons in the sizer die. The ONLY use I have for them is virgin brass. I take the extra step. I size all new brass with the button to ensure consistency to whatever level that batch of brass allows. Then take the button out and do it all again where neck is reduced again. Then trim all, flash hole debur, and they are ready to go. </p><p></p><p>All fired brass gets sized w/o the button. No need for it and it only runs the risk of introducing runout.</p></blockquote><p></p>
[QUOTE="Derek M., post: 865705, member: 2693"] Glad this topic came up and I've been considering moving towards neck sizing only. Just this week I was wondering if I could send all of my FL sizing dies back to factory and have them ream and convert to neck size only. Here's my thoughts and experiences: FL sizing is a good thing when done properly, taking note of shoulder bump. I use RCBS precision mics for this. We all know the neck is sized during this process. If in fact I cater to my laziness, I'd much rather just neck size and forgo all of the case lube crap and extra cleaning of the cases. Which is what I'm seriously considering. But if I do, then I wonder what will happen that day in the field when I have a feeding issue on a neck sized only loaded round. That is the one thing that has kept me from neck sizing only all of these years. I can't see how this can't be a fact but if indeed neck sizing dies are used, there is certainly less work hardening on the cases and if less work to the brass means longer reloads, then it must extend the usefulness of the brass. As to bushings and Lee collet dies, never had either. I chose to send my size dies back to manufacturer and have them hone the necks to .003 less than a loaded round. No collet or bushing needed. When the case is fired, it's going to expand the neck to the chamber dimension and only half of my rifles are "tight-necked." So, at the moment, my case necks when fired and sized still do not get near the work hardening they did prior to the modification when using a button. But the body still gets worked. As to buttons in the sizer die. The ONLY use I have for them is virgin brass. I take the extra step. I size all new brass with the button to ensure consistency to whatever level that batch of brass allows. Then take the button out and do it all again where neck is reduced again. Then trim all, flash hole debur, and they are ready to go. All fired brass gets sized w/o the button. No need for it and it only runs the risk of introducing runout. [/QUOTE]
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