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Rifles, Reloading, Optics, Equipment
Reloading
Competition Dies?
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<blockquote data-quote="Brent" data-source="post: 69880" data-attributes="member: 99"><p>One more thing on this runout deal -</p><p></p><p>Some of you may want to purchase a test jig to measure your RO, and like Bountyhunter said, the RCBS works great and also does a few other things like case wall thickness etc, and is reasonably priced. </p><p></p><p>All this that I've said is easy to check for yourself if you have a concentricity jig, don't take my word for it as you can check it and see it for yourself so easy. </p><p></p><p>Now this part here is important: If your fired cases have ANY RUNOUT, you MUST use a FL die in order to correct it, a NECK die will not correct this and if you think about it for a minute you will understand why it will not, and why the FL die WILL. If the fired cases come out of your chamber with RO the NECK die will almost always make the runout WORSE. If you have a chamber that produces .003 RO upon firing and run those cases into the NECK die and find the RO increased to .005 - .008 TIR (total indicated runout), when you shoot them they are further off (obviously) than they were initially but will go back to about .003 TIR when fired... but the cycle will continue. </p><p></p><p>Even neck thickness and using a FL die with a good straight seating die is anyones best bet for consistant concentric ammo.</p></blockquote><p></p>
[QUOTE="Brent, post: 69880, member: 99"] One more thing on this runout deal - Some of you may want to purchase a test jig to measure your RO, and like Bountyhunter said, the RCBS works great and also does a few other things like case wall thickness etc, and is reasonably priced. All this that I've said is easy to check for yourself if you have a concentricity jig, don't take my word for it as you can check it and see it for yourself so easy. Now this part here is important: If your fired cases have ANY RUNOUT, you MUST use a FL die in order to correct it, a NECK die will not correct this and if you think about it for a minute you will understand why it will not, and why the FL die WILL. If the fired cases come out of your chamber with RO the NECK die will almost always make the runout WORSE. If you have a chamber that produces .003 RO upon firing and run those cases into the NECK die and find the RO increased to .005 - .008 TIR (total indicated runout), when you shoot them they are further off (obviously) than they were initially but will go back to about .003 TIR when fired... but the cycle will continue. Even neck thickness and using a FL die with a good straight seating die is anyones best bet for consistant concentric ammo. [/QUOTE]
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Competition Dies?
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