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Rifles, Reloading, Optics, Equipment
Gunsmithing
Hypothetical question.
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<blockquote data-quote="ntsqd" data-source="post: 2164068" data-attributes="member: 93138"><p>Regardless of thread timing the barrels will headspace correctly if all of the receivers, all of the barrels, and all of the recoil lugs are made to the same Basic dimensions. Basic dimensions have no tolerance, they're not "1.005 ±.005" If such a dimension is 1.005 then it is not 1.005 ±.005 or even 1.005 ±.0005, it is 1.005 ±.0000000000000</p><p></p><p>If the thread timing isn't the same, that is both the receiver threading and the barrel threading don't start in the same relative rotational location, then any markings will be in random places when the barrels do snug up.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 2164068, member: 93138"] Regardless of thread timing the barrels will headspace correctly if all of the receivers, all of the barrels, and all of the recoil lugs are made to the same Basic dimensions. Basic dimensions have no tolerance, they're not "1.005 ±.005" If such a dimension is 1.005 then it is not 1.005 ±.005 or even 1.005 ±.0005, it is 1.005 ±.0000000000000 If the thread timing isn't the same, that is both the receiver threading and the barrel threading don't start in the same relative rotational location, then any markings will be in random places when the barrels do snug up. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Hypothetical question.
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