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Rifles, Reloading, Optics, Equipment
Gunsmithing
Headspace Gauge
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<blockquote data-quote="tobnpr" data-source="post: 2006940" data-attributes="member: 68758"><p>Still a bit unclear as to your objective, but sounds like you're just trying to figure out which barrels were fitted to which actions.</p><p></p><p>It is possible that barrels could headspace within tolerances of the gauges on both receivers- but you'd still want to know which has the tightest clearance beyond "go" if that happens. IOW- if the same barrel passes "go" and "no go" on both receivers, it's almost certain to have more clearance on one vs. the other. Something like go + .001 on the receiver it was originally fitted to- but maybe go + .004 on the other.</p><p></p><p>You can check by adding a layer of cellophane packing tape (usually around .003- but best to mike it) trimmed to fit the back of the go gauge. You want your bolt stripped (spring, ejector) so there is no resistance, handle should fall with little to no resistance on go gauge. Add the tape, handle should not fall.</p></blockquote><p></p>
[QUOTE="tobnpr, post: 2006940, member: 68758"] Still a bit unclear as to your objective, but sounds like you're just trying to figure out which barrels were fitted to which actions. It is possible that barrels could headspace within tolerances of the gauges on both receivers- but you'd still want to know which has the tightest clearance beyond "go" if that happens. IOW- if the same barrel passes "go" and "no go" on both receivers, it's almost certain to have more clearance on one vs. the other. Something like go + .001 on the receiver it was originally fitted to- but maybe go + .004 on the other. You can check by adding a layer of cellophane packing tape (usually around .003- but best to mike it) trimmed to fit the back of the go gauge. You want your bolt stripped (spring, ejector) so there is no resistance, handle should fall with little to no resistance on go gauge. Add the tape, handle should not fall. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Gunsmithing
Headspace Gauge
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