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300 Win Mag
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<blockquote data-quote="John Burns" data-source="post: 10144" data-attributes="member: 2164"><p>Nate,</p><p></p><p>I have measured the cooling effect on gun barrels that were fluted and not fluted and I know there is a difference. We use an oven to heat barrels and actions to 300 degs to cure finishes and I can absolutely tell you a fluted barrel will cool about twice as fast.</p><p></p><p>As to the barrel issue I base my opinion on real scientific data gathered by Harold Vaughn and presented in his book "Rifle Accuracy Facts". Harold used an accelerometer on the muzzle to MEASURE barrel vibration and goes into great detail on cause and effect. I have spoken to Harold and believe his data is absolutely correct. If you have access to some other real data concerning barrel vibration please let me know, as I would be very interested. </p><p></p><p>A way to better understand barrel vibration is to think of spaghetti noodles. It is easy to make an uncooked noodle vibrate but very difficult with one that has been cooked.</p><p></p><p>With steel gun barrels it is not possible to reduce the rigidity without reducing the strength so we are stuck on that account but any weight we can add, especially to the muzzle will reduce barrel vibration. </p><p></p><p>Barrel vibration is a sine wave that starts at the action between the locking lugs and the recoil lug. The "stiffer" and lighter your barrel is the faster the wave will travel down the barrel and the more your muzzle will move. This is why the carbon wrapped barrels are a step in the wrong direction.</p></blockquote><p></p>
[QUOTE="John Burns, post: 10144, member: 2164"] Nate, I have measured the cooling effect on gun barrels that were fluted and not fluted and I know there is a difference. We use an oven to heat barrels and actions to 300 degs to cure finishes and I can absolutely tell you a fluted barrel will cool about twice as fast. As to the barrel issue I base my opinion on real scientific data gathered by Harold Vaughn and presented in his book “Rifle Accuracy Facts”. Harold used an accelerometer on the muzzle to MEASURE barrel vibration and goes into great detail on cause and effect. I have spoken to Harold and believe his data is absolutely correct. If you have access to some other real data concerning barrel vibration please let me know, as I would be very interested. A way to better understand barrel vibration is to think of spaghetti noodles. It is easy to make an uncooked noodle vibrate but very difficult with one that has been cooked. With steel gun barrels it is not possible to reduce the rigidity without reducing the strength so we are stuck on that account but any weight we can add, especially to the muzzle will reduce barrel vibration. Barrel vibration is a sine wave that starts at the action between the locking lugs and the recoil lug. The “stiffer” and lighter your barrel is the faster the wave will travel down the barrel and the more your muzzle will move. This is why the carbon wrapped barrels are a step in the wrong direction. [/QUOTE]
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