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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Radial barrel fluting
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<blockquote data-quote="Steve Shelp" data-source="post: 23460" data-attributes="member: 22"><p>To simply answer your question..... none. Some LG class rifles used fluting, but it's the std fluting used to save weight only.</p><p></p><p>Even in HG class to where you fire normally 5-8 sigthers then 10 rds for your record string in 30-45 secs, barrels don't get that hot externally that quickly for me to warrant the expense of this type of fluting. The only time I've ever had barrel heat trouble in competition was in 2000 during the NBRSA championship match to where you fire 3 relays back-to-back with the same gun. My 338 has 2" Lilja barrel on it and it was hot then. Had a rig to pour ice water down the barrel and had ice cold towels wrapped around the outside of it. That still wasn't enough. So special fluting does increase your surface area and it does cool quicker, but does it cool quickly enough during the practical application in which the rifle is used..... I'm not sold on that a this point in time. </p><p></p><p> In regard to harmonics.... The biggest thing long barrels have to overcome upon firing (and this is based on tests done and monitored on an oscilliscope(spelling?)) is the sagging moment and getting rid of the up/down whiping of the barrel. This circular fluting only weakens the barrel in this aspect and compounds the problem. But I would be curious to see the harmonic patterns produced by this barrel though. As an engineer I never rule anything out without hard data to go by. And I'm only going by first thoughts and common sense right now. And we all know bubble bees can't fly also.</p><p> </p><p>Steve</p></blockquote><p></p>
[QUOTE="Steve Shelp, post: 23460, member: 22"] To simply answer your question..... none. Some LG class rifles used fluting, but it's the std fluting used to save weight only. Even in HG class to where you fire normally 5-8 sigthers then 10 rds for your record string in 30-45 secs, barrels don't get that hot externally that quickly for me to warrant the expense of this type of fluting. The only time I've ever had barrel heat trouble in competition was in 2000 during the NBRSA championship match to where you fire 3 relays back-to-back with the same gun. My 338 has 2" Lilja barrel on it and it was hot then. Had a rig to pour ice water down the barrel and had ice cold towels wrapped around the outside of it. That still wasn't enough. So special fluting does increase your surface area and it does cool quicker, but does it cool quickly enough during the practical application in which the rifle is used..... I'm not sold on that a this point in time. In regard to harmonics.... The biggest thing long barrels have to overcome upon firing (and this is based on tests done and monitored on an oscilliscope(spelling?)) is the sagging moment and getting rid of the up/down whiping of the barrel. This circular fluting only weakens the barrel in this aspect and compounds the problem. But I would be curious to see the harmonic patterns produced by this barrel though. As an engineer I never rule anything out without hard data to go by. And I'm only going by first thoughts and common sense right now. And we all know bubble bees can't fly also. Steve [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Radial barrel fluting
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