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Rifles, Reloading, Optics, Equipment
Gunsmithing
Truing an action.
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<blockquote data-quote="25WSM" data-source="post: 1869671" data-attributes="member: 38048"><p>A lot of guys truing actions use a mandrel to line up the bore of the raceway. It's easier to hone the raceway to fit that mandrel perfectly than it is to put bushings at each end. My mandrel is . 500 at one end for bushings but the other end is . 705 if I hone out the raceway the entire . 705 fits in the receiver. I use the . 705 if I'm going to sleeve the bolt. Otherwise I use the various . 701 to . 703 bushings on the . 500 side of the mandrel. Either way will make the receiver straight for the truing cuts. So maybe the company that only does it if they hone the raceway has a particular mandrel they have to use and that's why they mandate the honing.</p><p>Shep</p></blockquote><p></p>
[QUOTE="25WSM, post: 1869671, member: 38048"] A lot of guys truing actions use a mandrel to line up the bore of the raceway. It's easier to hone the raceway to fit that mandrel perfectly than it is to put bushings at each end. My mandrel is . 500 at one end for bushings but the other end is . 705 if I hone out the raceway the entire . 705 fits in the receiver. I use the . 705 if I'm going to sleeve the bolt. Otherwise I use the various . 701 to . 703 bushings on the . 500 side of the mandrel. Either way will make the receiver straight for the truing cuts. So maybe the company that only does it if they hone the raceway has a particular mandrel they have to use and that's why they mandate the honing. Shep [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Truing an action.
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