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Rifles, Reloading, Optics, Equipment
Reloading
The Chamber vs. The Die.....
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<blockquote data-quote="Doom2" data-source="post: 2871749" data-attributes="member: 108323"><p>Buy a factory rifle like a 308 or 6..5CM and the chamber will have minimum or larger dimensions based on SAAMi minimum or larger dimensions. Buy a typical Lee, RCBS, Hornady Full Length resizing die and it sizes the brass to something equal to less than the SAAMi maximum cartridge dimensions with a standard shell holder. Change the chamber, change the die, or more commonly change the expectations and problems/difficulties have the potential to arise. Probably most prevalent is trying set the shoulder to an exact dimension or to optimize the neck tension. This is when a custom or specialty customizable die begins to come into play. </p><p></p><p>Most chamber modifications are centered around neck sizing (die related dimension) or freebore which doesn't affect the die so a full length bushing die can be used. Another option is to use a bump busing die. A bump die aids in optimizing the case datum dimension if the reloader is trying to achieve a specific bump.</p><p></p><p>If you change the chamber you may well have to change the die also. You can much more easily modify/cutomize a die.</p></blockquote><p></p>
[QUOTE="Doom2, post: 2871749, member: 108323"] Buy a factory rifle like a 308 or 6..5CM and the chamber will have minimum or larger dimensions based on SAAMi minimum or larger dimensions. Buy a typical Lee, RCBS, Hornady Full Length resizing die and it sizes the brass to something equal to less than the SAAMi maximum cartridge dimensions with a standard shell holder. Change the chamber, change the die, or more commonly change the expectations and problems/difficulties have the potential to arise. Probably most prevalent is trying set the shoulder to an exact dimension or to optimize the neck tension. This is when a custom or specialty customizable die begins to come into play. Most chamber modifications are centered around neck sizing (die related dimension) or freebore which doesn't affect the die so a full length bushing die can be used. Another option is to use a bump busing die. A bump die aids in optimizing the case datum dimension if the reloader is trying to achieve a specific bump. If you change the chamber you may well have to change the die also. You can much more easily modify/cutomize a die. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
The Chamber vs. The Die.....
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