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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity - setting up dies - runout
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<blockquote data-quote="boomtube" data-source="post: 506995" data-attributes="member: 9215"><p>Thing is, the case shoulder will hit and stop at any point we set the die whether there is an O ring squeezed under the lock ring or not. The die certainly isn't going to move <u>down</u> and it can't possibly move <u>up</u> past solid contact with the press threads! A compressed O ring can achieve that solid contact as well as a bare die. </p><p> </p><p>Not that it matters much but, as an issue of reloading's correct technical semantics, OAL is not releated to cases, as such; case length is case length and that IS head to mouth.</p><p> </p><p>OAL (or COAL) correctly refers to cartridge "Over All Length", which automatically includes the seated bullet. Adding a "C" for "Cartridge" as some do is superfluous but acceptable terminology.</p></blockquote><p></p>
[QUOTE="boomtube, post: 506995, member: 9215"] Thing is, the case shoulder will hit and stop at any point we set the die whether there is an O ring squeezed under the lock ring or not. The die certainly isn't going to move [U]down[/U] and it can't possibly move [U]up[/U] past solid contact with the press threads! A compressed O ring can achieve that solid contact as well as a bare die. Not that it matters much but, as an issue of reloading's correct technical semantics, OAL is not releated to cases, as such; case length is case length and that IS head to mouth. OAL (or COAL) correctly refers to cartridge "Over All Length", which automatically includes the seated bullet. Adding a "C" for "Cartridge" as some do is superfluous but acceptable terminology. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Concentricity - setting up dies - runout
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