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Rifles, Reloading, Optics, Equipment
Reloading
Chamber Neck Length?
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<blockquote data-quote="AZShooter" data-source="post: 1342589" data-attributes="member: 5219"><p>It is quite common to encounter chamber ends that are long. In fact every factory chamber I have measured were well past the max SAMMI OACL. No need to ever trim for the life of some cartridges as the case would wear out before the neck would impinge on the end of the chamber.</p><p></p><p>IIRC I first read about this on Varmint Al's website in the late 1990s. He was an engineer and has written some interesting stuff. His information is still relevant today. Regarding chamber length, quote: "I usually find that the factory recommendations for case length leave a 0.050 inch to 0.070 inch gap between the end of the case and the actual length of the chamber."</p><p></p><p>Varmint Al's reloading pages <a href="http://www.varmintal.com/arelo.htm#Chamber_Length" target="_blank">http://www.varmintal.com/arelo.htm#Chamber_Length</a></p><p></p><p>He has a section on the mini lathe. Within it he included how to machine your own chamber plugs. I made my own on my lathe saving time and money. Thanks again Al.</p><p></p><p><a href="http://www.varmintal.com/alath.htm#Chamber_Length_Gauge" target="_blank">http://www.varmintal.com/alath.htm#Chamber_Length_Gauge</a></p></blockquote><p></p>
[QUOTE="AZShooter, post: 1342589, member: 5219"] It is quite common to encounter chamber ends that are long. In fact every factory chamber I have measured were well past the max SAMMI OACL. No need to ever trim for the life of some cartridges as the case would wear out before the neck would impinge on the end of the chamber. IIRC I first read about this on Varmint Al's website in the late 1990s. He was an engineer and has written some interesting stuff. His information is still relevant today. Regarding chamber length, quote: "I usually find that the factory recommendations for case length leave a 0.050 inch to 0.070 inch gap between the end of the case and the actual length of the chamber." Varmint Al's reloading pages [URL]http://www.varmintal.com/arelo.htm#Chamber_Length[/URL] He has a section on the mini lathe. Within it he included how to machine your own chamber plugs. I made my own on my lathe saving time and money. Thanks again Al. [URL]http://www.varmintal.com/alath.htm#Chamber_Length_Gauge[/URL] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Chamber Neck Length?
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