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Rifles, Reloading, Optics, Equipment
Reloading
Accuracy of Cartridge Length
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<blockquote data-quote="Bart B" data-source="post: 1796179" data-attributes="member: 5302"><p>Why use the .223 Rem case head as the rear reference? It's not against the bolt face when the round fires. The case shoulder is hard against the chamber shoulder when fired; driven there by bolt face ejector or spring loaded firing pin before firing. Case head clearance to bolt face spread is equal to the case head to case shoulder (case headspace?) spread.</p></blockquote><p></p>
[QUOTE="Bart B, post: 1796179, member: 5302"] Why use the .223 Rem case head as the rear reference? It's not against the bolt face when the round fires. The case shoulder is hard against the chamber shoulder when fired; driven there by bolt face ejector or spring loaded firing pin before firing. Case head clearance to bolt face spread is equal to the case head to case shoulder (case headspace?) spread. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Accuracy of Cartridge Length
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