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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Why use a carbon wrapped barel?
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<blockquote data-quote="rustyshackleford" data-source="post: 2071035" data-attributes="member: 59526"><p>So thermal conductivity is dependent on the material itself and independent of quantity if that's what you are asking. Depending on resin and additives you could have higher or lower thermal conductivity than baseline epoxy. So in order to cool the barrel faster than steel you either have to have a higher thermal conductivity or have geometry matching the critical radius of insulation. Basically you CAN cool something off by wrapping it in a an insulator depending on the thermal conductivity of the materials, temperature differences, and size constraints. Using critical radius of an insulator would make perfect sense but I've never seen anyone refer to it in these discussions or by the mfg so I'm assuming it's not the mechanism at work here.</p><p></p><p>I have read what another poster said about transmitting heat longitudinally along the fibers but then you'd lose your rigidity. Basically I think CF does give you the rigidity they claim it does, but to be configured for the property of rigidity it's also arranged in a manner that certainly seems like it would insulate the barrel. I think it's fine for slower volumes of fire but I don't believe it dissipates heat in a better way than steel that translates to longer barrel life. I'm with the other posters here who are of the mind to run a steel barrel of a slightly smaller diameter and flute it if barrel life is any concern.</p></blockquote><p></p>
[QUOTE="rustyshackleford, post: 2071035, member: 59526"] So thermal conductivity is dependent on the material itself and independent of quantity if that’s what you are asking. Depending on resin and additives you could have higher or lower thermal conductivity than baseline epoxy. So in order to cool the barrel faster than steel you either have to have a higher thermal conductivity or have geometry matching the critical radius of insulation. Basically you CAN cool something off by wrapping it in a an insulator depending on the thermal conductivity of the materials, temperature differences, and size constraints. Using critical radius of an insulator would make perfect sense but I’ve never seen anyone refer to it in these discussions or by the mfg so I’m assuming it’s not the mechanism at work here. I have read what another poster said about transmitting heat longitudinally along the fibers but then you’d lose your rigidity. Basically I think CF does give you the rigidity they claim it does, but to be configured for the property of rigidity it’s also arranged in a manner that certainly seems like it would insulate the barrel. I think it’s fine for slower volumes of fire but I don’t believe it dissipates heat in a better way than steel that translates to longer barrel life. I’m with the other posters here who are of the mind to run a steel barrel of a slightly smaller diameter and flute it if barrel life is any concern. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Why use a carbon wrapped barel?
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