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Rifles, Reloading, Optics, Equipment
Equipment Discussions
Gre_tan tooling and fixtures
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<blockquote data-quote="daveosok" data-source="post: 79900"><p>When I ground the outside of an action the arbor I used was turned to fit the action bore, it was tapered to fit the action bolt raceway bore because that bore was not straight. The action took .011 thou to clean up and now is concentric to the action bolt raceway bore.</p><p></p><p>The aluminum Gre-Tan fixture used to indicate the action in using the rods from Gre-Tan are they tapered or do you simply force the rods to contact one surface, say using extended scope base screws or the action bedding screws or do these bushings for the mandrel have tapered surfaces to center themselves in the action raceway? Buy the looks of the picture on their site the mandrel used to indicate the action in is really close to the bolt bore diameter, how thick or think are these bushings or is the madrel turned down smaller for the section that fits inside the action?</p><p></p><p>I understand how to use the fixture but am questioning the tapered bore. Maybe this was just my action but Remington's manufacturing process leaves a lot to be desired in the realm of accurate machining.</p><p></p><p>If someone would be so kind as to go over how they use this it would be greatly appreciated.</p><p></p><p></p><p>Thanks</p></blockquote><p></p>
[QUOTE="daveosok, post: 79900"] When I ground the outside of an action the arbor I used was turned to fit the action bore, it was tapered to fit the action bolt raceway bore because that bore was not straight. The action took .011 thou to clean up and now is concentric to the action bolt raceway bore. The aluminum Gre-Tan fixture used to indicate the action in using the rods from Gre-Tan are they tapered or do you simply force the rods to contact one surface, say using extended scope base screws or the action bedding screws or do these bushings for the mandrel have tapered surfaces to center themselves in the action raceway? Buy the looks of the picture on their site the mandrel used to indicate the action in is really close to the bolt bore diameter, how thick or think are these bushings or is the madrel turned down smaller for the section that fits inside the action? I understand how to use the fixture but am questioning the tapered bore. Maybe this was just my action but Remington’s manufacturing process leaves a lot to be desired in the realm of accurate machining. If someone would be so kind as to go over how they use this it would be greatly appreciated. Thanks [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Gre_tan tooling and fixtures
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