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Rifles, Reloading, Optics, Equipment
Reloading
Sticky extraction
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<blockquote data-quote="Mikecr" data-source="post: 1836311" data-attributes="member: 1521"><p>Sticky extraction, while not from an over pressure load, is from excess clearance near webs, leading to a lot of brass yielding on firing, then leading to interference fit with the chamber. Or, the action timing is poor.</p><p>If you find that you need to increase near web sizing more & more to get viable extraction, then it's time to discard the chamber & start over with a better one.</p><p></p><p>Measure new & fired cases at peak diameter(at webline). If difference is beyond 0.0015", your chamber sucks for a match.</p><p>Also make sure your bolt contacts the extraction ramp early as possible.</p><p></p><p>There is another possibility -not enough breach support.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 1836311, member: 1521"] Sticky extraction, while not from an over pressure load, is from excess clearance near webs, leading to a lot of brass yielding on firing, then leading to interference fit with the chamber. Or, the action timing is poor. If you find that you need to increase near web sizing more & more to get viable extraction, then it's time to discard the chamber & start over with a better one. Measure new & fired cases at peak diameter(at webline). If difference is beyond 0.0015", your chamber sucks for a match. Also make sure your bolt contacts the extraction ramp early as possible. There is another possibility -not enough breach support. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Sticky extraction
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