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Rifles, Reloading, Optics, Equipment
Reloading
300 Win Mag Headspace
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<blockquote data-quote="woods" data-source="post: 1487558" data-attributes="member: 6042"><p>Every rifle has an individual headspace and every lot of brass can (and usually does) have a slightly different headspace. Knowing someone else's dimensions will not be definitive for you.</p><p></p><p>On 300 Win Mag best to fire 3 or 4 times until your fired/unsized brass gets a slight crush fit in your chamber and then push the shoulder back .001" or so.</p><p></p><p>That would mean you are now "headspacing in the shoulder" which would mean less chance for a case separation and best fit for <u>your</u> rifle</p></blockquote><p></p>
[QUOTE="woods, post: 1487558, member: 6042"] Every rifle has an individual headspace and every lot of brass can (and usually does) have a slightly different headspace. Knowing someone else's dimensions will not be definitive for you. On 300 Win Mag best to fire 3 or 4 times until your fired/unsized brass gets a slight crush fit in your chamber and then push the shoulder back .001" or so. That would mean you are now "headspacing in the shoulder" which would mean less chance for a case separation and best fit for [U]your[/U] rifle [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
300 Win Mag Headspace
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