
Posted: 5/22/2002 7:04:19 PM EST
What can I say? I didn't name myself "greenhorn" for nothing. I have no idea what "fluting" is.
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Fluting mills a barrel so it appears to have a number of U shaped channels running down the length of the outside of the barrel, reducing weight and creating a greater surface area for cooling. I have read one or two drawbacks to fluting, but can't remember them at this moment.
A picture at the bottom of this page explains it better than I can... www.bushmaster.com/shopping/barrel-assemblies/ |
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Fluting is also done on the INSIDE of a chamber (at least by H&K on their P7 9mm) as a way to reduce the contact area between the chamber wall and the outside of the spent shell. Then they vent a small amount of gas to further reduce the friction during the ejection of the shell. Stay safe
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Don't forget the cylinders on revolvers -- done mostly to reduce weight.
Noah |
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Shame on them who think ill of it.
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Master_Blaster,
Fluting actually increases rigidity, not decreases it. |
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"Vote Bush, I say it also, just not with the same enthusiasm as some of you." Posted - 03/30/2004 : 09:49:01 by cyanide
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Not quite, a fluted barrel and a regular barrel of the same weight will have the fluted barrel stiffer, because the fluted barrel is larger in diameter.
www.riflebarrels.com/length.htm |
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I heard FrankSquid might have been in the Merchant Marine...
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Bzzzz. But thanks for playing. Departing guests will receive a copy of the home game... ![]() -Troy |
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Ammo FAQ: www.ammo-oracle.com
(Old) Mag FAQ: magfaq.tripod.com Barrel? Go CHROME or go home. |
Take a barrel that is fluted and one that is not but of the same weight as the fluted barrel and which one will be more rigid? The fluted one, of course. |
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"Vote Bush, I say it also, just not with the same enthusiasm as some of you." Posted - 03/30/2004 : 09:49:01 by cyanide
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One time, at band camp...
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We have comedian on onboard. Anything else you have to say to the class? |
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Not trying to piss in anyone's puch-bowl, but torsional & lateral strength of an object such as a barrel is directly related to cross-sectional area. Fluting decreases this figure &, therefore, reduces the bbl.s strength/rigidity &, thus, its resistance to primary harmonics. Thus, if we have 2 bbls. of the same dimension, & we flute one of them, all other dimensions being the same, the fluted bbls. reduced cross-sectional area will result in decreased rigidity - it'll whip w/ greater amplitude than the non-fluted one. Bushmaster used to claim that bbl. fluting increased rigidity, but later retracted it for this same misunderstanding. |
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Not just on the P7, but on the HK91 and 93 series as well. The extraction on the 91 is so violent, that without the fluting and the shell being "floated" by the gas, the brass would often be ripped in half. |
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"And now the night is through and the storm is passed, and everything that could be shaken was shaken and all that remains was all I ever really h
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Wasn't Fluting an NFL quarterback?
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"The world is never hostile... it just plain doesn't give a damn." -- Martin Caidin
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Nah! It's what Pan and Kokopelli do...
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Doug, that is. |
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