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Rifles, Reloading, Optics, Equipment
Reloading
Bolt cam over
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<blockquote data-quote="bigedp51" data-source="post: 1181531" data-attributes="member: 28965"><p>We live in a plus and minus manufacturing world and no two dies and chambers are the same. Example I have a standard Lee full length .223 die that reduces the case diameter more than my RCBS small base die does. This same RCBS small base die only sizes the case .0005 smaller than my standard FL RCBS die "BUT" the small base die sizes further down the case.</p><p></p><p>On semi-auto rifles the sized case should be .003 to .005 smaller in diameter than the chamber. This insures that the brass will spring back from the chamber walls and extract.</p><p></p><p>And again the brass hardness in the base has a big effect so a different brand of brass like Lapua or Winchester might fix the issue.</p></blockquote><p></p>
[QUOTE="bigedp51, post: 1181531, member: 28965"] We live in a plus and minus manufacturing world and no two dies and chambers are the same. Example I have a standard Lee full length .223 die that reduces the case diameter more than my RCBS small base die does. This same RCBS small base die only sizes the case .0005 smaller than my standard FL RCBS die "BUT" the small base die sizes further down the case. On semi-auto rifles the sized case should be .003 to .005 smaller in diameter than the chamber. This insures that the brass will spring back from the chamber walls and extract. And again the brass hardness in the base has a big effect so a different brand of brass like Lapua or Winchester might fix the issue. [/QUOTE]
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Bolt cam over
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