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Rifles, Reloading, Optics, Equipment
Gunsmithing
Thoughts from the pro's
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<blockquote data-quote="Daveog" data-source="post: 1624175" data-attributes="member: 26127"><p>I've recut several receivers. I'm not exactly sure what you are proposing, but it sounds like are trying to square the face of the receiver to the existing threads? What you need to do is cut the threads so they are parallel to the the receiver and square the face as well. The best way to do this is buy a raceway reamer from PTG (<a href="http://pacifictoolandgauge.com/rifle-bolt-raceway-reamers/9901-705-bolt-raceway-reamer-mandrel-hss.html" target="_blank">http://pacifictoolandgauge.com/rifle-bolt-raceway-reamers/9901-705-bolt-raceway-reamer-mandrel-hss.html</a>) that you can use with bushings to have a ground surface that is completely true to the receiver body to indicate on. When you do that, you have the receiver indicated true to your spindle and when you cut threads they become true to the receiver and when you face the receiver, it is square as well. You can buy, at great expense, a piloted tap (<a href="http://pacifictoolandgauge.com/tap-mandrels/1418-remington-700-piloted-tap-mandrel-standard-hss.html" target="_blank">http://pacifictoolandgauge.com/tap-mandrels/1418-remington-700-piloted-tap-mandrel-standard-hss.html</a>) to recut the threads true to the receiver but there is a lot of debate about whether it is as good as single point threading. Bottom line is that if the threads are not in line with the receiver body, squaring the face of the receiver to the threads will still result in a barrel that is not inline with the receiver. I hope that makes sense.</p></blockquote><p></p>
[QUOTE="Daveog, post: 1624175, member: 26127"] I've recut several receivers. I'm not exactly sure what you are proposing, but it sounds like are trying to square the face of the receiver to the existing threads? What you need to do is cut the threads so they are parallel to the the receiver and square the face as well. The best way to do this is buy a raceway reamer from PTG ([URL]http://pacifictoolandgauge.com/rifle-bolt-raceway-reamers/9901-705-bolt-raceway-reamer-mandrel-hss.html[/URL]) that you can use with bushings to have a ground surface that is completely true to the receiver body to indicate on. When you do that, you have the receiver indicated true to your spindle and when you cut threads they become true to the receiver and when you face the receiver, it is square as well. You can buy, at great expense, a piloted tap ([URL]http://pacifictoolandgauge.com/tap-mandrels/1418-remington-700-piloted-tap-mandrel-standard-hss.html[/URL]) to recut the threads true to the receiver but there is a lot of debate about whether it is as good as single point threading. Bottom line is that if the threads are not in line with the receiver body, squaring the face of the receiver to the threads will still result in a barrel that is not inline with the receiver. I hope that makes sense. [/QUOTE]
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