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Rifles, Reloading, Optics, Equipment
Reloading
300 wm dies
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<blockquote data-quote="Sending156s" data-source="post: 2490747" data-attributes="member: 109060"><p>Something I don't know if it's been mentioned is to expect Lapua, Nosler, Norma, shoulders to push forward about 0.012" before the case shoulder contacts the chamber shoulder. The only one that doesn't do this is Peterson 300 WM Long. It is not a problem as you are headspacing of the rim. It can make you scratch your head on load development as you case capacity grows until your shoulder bumps. After your shoulder bumps just bump it back .002-.003 as you would with ant cartridge. The .012 is with a custom match chamber. Redding technicians have told me they have seen it take 5-7 firings in a factory rifle.</p></blockquote><p></p>
[QUOTE="Sending156s, post: 2490747, member: 109060"] Something I don’t know if it’s been mentioned is to expect Lapua, Nosler, Norma, shoulders to push forward about 0.012” before the case shoulder contacts the chamber shoulder. The only one that doesn’t do this is Peterson 300 WM Long. It is not a problem as you are headspacing of the rim. It can make you scratch your head on load development as you case capacity grows until your shoulder bumps. After your shoulder bumps just bump it back .002-.003 as you would with ant cartridge. The .012 is with a custom match chamber. Redding technicians have told me they have seen it take 5-7 firings in a factory rifle. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 wm dies
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