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Rifles, Reloading, Optics, Equipment
Gunsmithing
Bolt Diameters
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<blockquote data-quote="Joel Russo" data-source="post: 1190807" data-attributes="member: 6152"><p>Going too tight on the bolt body to action body tolerance can and will be detrimental on a hunting rifle. In designing our custom actions, we found that .004" was the magical number. I have an early BAT action that was closer to .002". If felt butter smooth when you cycled the bolt on a cold action. I used this particular action on a comp rifle, and after a few shots, the heat from the chamber would migrate through the tennon and into the action body. It tightened up the bolt and rendered the rifle inoperable. I used some lapping compound and opened it up a few thou. On an action, I highly recommend going with .004" clearance.</p></blockquote><p></p>
[QUOTE="Joel Russo, post: 1190807, member: 6152"] Going too tight on the bolt body to action body tolerance can and will be detrimental on a hunting rifle. In designing our custom actions, we found that .004" was the magical number. I have an early BAT action that was closer to .002". If felt butter smooth when you cycled the bolt on a cold action. I used this particular action on a comp rifle, and after a few shots, the heat from the chamber would migrate through the tennon and into the action body. It tightened up the bolt and rendered the rifle inoperable. I used some lapping compound and opened it up a few thou. On an action, I highly recommend going with .004" clearance. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Bolt Diameters
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