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Rifles, Reloading, Optics, Equipment
Reloading
Reading a sinclair concentricity gauge
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<blockquote data-quote="J E Custom" data-source="post: 1618726" data-attributes="member: 2736"><p>To me a perfect fit is just that and doesn't have any measurable clearance. (Machinist call this a slip fit) because it will still chamber/move, but has no slack/clearance. </p><p></p><p>With proper sizing, and good dies that match your chamber, the case should fit like the chamber reamer did. In many cases the case has a slight crush fit so it cant move during firing. The only movement that can take place is neck expansion and a slight lengthening of the case due to pressure. The better the fit (Restraint), the less the case will lengthen.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1618726, member: 2736"] To me a perfect fit is just that and doesn't have any measurable clearance. (Machinist call this a slip fit) because it will still chamber/move, but has no slack/clearance. With proper sizing, and good dies that match your chamber, the case should fit like the chamber reamer did. In many cases the case has a slight crush fit so it cant move during firing. The only movement that can take place is neck expansion and a slight lengthening of the case due to pressure. The better the fit (Restraint), the less the case will lengthen. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Reading a sinclair concentricity gauge
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