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Rifles, Reloading, Optics, Equipment
Gunsmithing
How to accurately measure (not validate) headspace?
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<blockquote data-quote="Jeffpatton00" data-source="post: 1851037" data-attributes="member: 97649"><p>You mentioned something interesting, tell me more about how shoulder position affects vertical dispersion. I shot this pic when doing load development on a new 223 Wylde semi-auto build, and saw these strings based only on testing different distances from the lands. These were all new brass, FL sized and at that time I didn't know to control headspace, so the different strings changed only by seating distance, and I've always wondered what could have produced these changes, especially the remarkable shift from vertical to horizontal, just changing the seating distance from .010" to .020", then back to quasi-vertical at .030" and .040".</p></blockquote><p></p>
[QUOTE="Jeffpatton00, post: 1851037, member: 97649"] You mentioned something interesting, tell me more about how shoulder position affects vertical dispersion. I shot this pic when doing load development on a new 223 Wylde semi-auto build, and saw these strings based only on testing different distances from the lands. These were all new brass, FL sized and at that time I didn't know to control headspace, so the different strings changed only by seating distance, and I've always wondered what could have produced these changes, especially the remarkable shift from vertical to horizontal, just changing the seating distance from .010" to .020", then back to quasi-vertical at .030" and .040". [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
How to accurately measure (not validate) headspace?
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