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Rifles, Reloading, Optics, Equipment
Gunsmithing
Pressure Issues
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<blockquote data-quote="J E Custom" data-source="post: 1482317" data-attributes="member: 2736"><p>What shortgrass said !!!</p><p></p><p>A good chambering job does not need polishing or buffing. If the right spindle speed and reamer feed is used, a good reamer will leave a perfect finish in the chamber.</p><p></p><p>Polishing or oiling the chamber only adds to the bolt loading and case movement. The proper chamber finish is supposed to grip the case during firing to minimize bolt loading and case head marking.</p><p></p><p>Chambers should be kept clean and free of oil to function properly. If some type of lubricant has to be used for extraction, the load is to hot and should be reduced. Extraction is never a problem if everything is correct. Simple!</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1482317, member: 2736"] What shortgrass said !!! A good chambering job does not need polishing or buffing. If the right spindle speed and reamer feed is used, a good reamer will leave a perfect finish in the chamber. Polishing or oiling the chamber only adds to the bolt loading and case movement. The proper chamber finish is supposed to grip the case during firing to minimize bolt loading and case head marking. Chambers should be kept clean and free of oil to function properly. If some type of lubricant has to be used for extraction, the load is to hot and should be reduced. Extraction is never a problem if everything is correct. Simple! J E CUSTOM [/QUOTE]
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