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Rifles, Reloading, Optics, Equipment
Reloading
Peterson Brass
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<blockquote data-quote="highdrum" data-source="post: 2298968" data-attributes="member: 13732"><p>As Jud said, upon first firing faint ejector marks can form from bolt slap. The long brass is supposed to be closer to proper headspace to shoulder. Deprime the fired brass, measure the shoulder datum line with your bump gauge, then measure the new unfired peterson, if there is a difference of more than 3 thou I'd bet your ejector shadows are coming from the initial forming to your chamber.</p></blockquote><p></p>
[QUOTE="highdrum, post: 2298968, member: 13732"] As Jud said, upon first firing faint ejector marks can form from bolt slap. The long brass is supposed to be closer to proper headspace to shoulder. Deprime the fired brass, measure the shoulder datum line with your bump gauge, then measure the new unfired peterson, if there is a difference of more than 3 thou I'd bet your ejector shadows are coming from the initial forming to your chamber. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Peterson Brass
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