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Posted: 9/14/2012 8:44:51 PM EDT
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Why would one chose either dimpling a barrel over fluting, or the other way 'round?
I really am curious so I'll keep my thoughts to my self as to not influence any answers My Ideas on the subject are purely speculation any way). |
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Why would one chose either dimpling a barrel over fluting, or the other way 'round? I really am curious so I'll keep my thoughts to my self as to not influence any answers My Ideas on the subject are purely speculation any way). I suspect that dimpling would act like that on a golf ball so that when you threw your rifle down the driveway, it would go a lot further. |
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Why would one chose either dimpling a barrel over fluting, or the other way 'round? I really am curious so I'll keep my thoughts to my self as to not influence any answers My Ideas on the subject are purely speculation any way). I suspect that dimpling would act like that on a golf ball so that when you threw your rifle down the driveway, it would go a lot further. +1 Great first answer |
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Why would one chose either dimpling a barrel over fluting, or the other way 'round? I really am curious so I'll keep my thoughts to my self as to not influence any answers My Ideas on the subject are purely speculation any way). I suspect that dimpling would act like that on a golf ball so that when you threw your rifle down the driveway, it would go a lot further. +1 Great first answer +2  I don't know about WHY one would choose one over the other, but I run a fluted barrel and I love it. I always thought the dimpled barrels looked nice too, but only on some rifles. Then again, I would say the same for the fluted ones.
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Quoted: Why would one chose either dimpling a barrel over fluting, or the other way 'round? I really am curious so I'll keep my thoughts to my self as to not influence any answers My Ideas on the subject are purely speculation any way). looks cool, and that's more important than anything else |
| I wanted to lighten up a heavy barrel and originally wanted to have it dimpled. Honestly, I wanted the dimples on account of the looks. However, after seeing the prices for dimpling I opted for fluting. It did lose some weight, but reprofiling would have been a lot better. The flutes look good, but a Marvin Pitts dimpled barred that is matte finished looks fantastic in my opinion. As for why....lose weight and increase cooling. Dimples look good, but flutes remove more metal. |
| I figured the dimples would increase surface area and promote faster cooling, But I figured that the flutes do the same thing and possibly maintain more rigidity, and consistency?". But with the popularity of the dimples I question that and wonder if there is some reason to go dimples instead of flutes? |
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I've got an unfounded belief that dimples make a barrel more ridged under barrel whip. Kind of like a linear honey comb effect, a bunch of little bitty dimples equally spaced out has to be stronger than long deep linear cuts. A dimpled barrel will have less rigidity after the dimples have been drilled than before. |
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I've got an unfounded belief that dimples make a barrel more ridged under barrel whip. Kind of like a linear honey comb effect, a bunch of little bitty dimples equally spaced out has to be stronger than long deep linear cuts. A dimpled barrel will have less rigidity after the dimples have been drilled than before. but would it have equal rigidity to a straight-contoured barrel of the same weight? |
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I've got an unfounded belief that dimples make a barrel more ridged under barrel whip. Kind of like a linear honey comb effect, a bunch of little bitty dimples equally spaced out has to be stronger than long deep linear cuts. A dimpled barrel will have less rigidity after the dimples have been drilled than before. but would it have equal rigidity to a straight-contoured barrel of the same weight? Thats a good question. I don't feel like busting out the mech of mat books right now, so I don't have a firm answer. Just sitting here thinking about it, I think so. However, my liver is pretty well saturated with beer right now so don't hold me to that.
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Quoted: OK, I guess I'm wrong? For some reason everything I remember hearing about the golfball dimples were that they took more material than fluting and offered a faster cooling rate without compromise to rigidity. Ok, so that's not more rigid. I miss spoke. Does it compromise rigidity of the bbls? Quoted: golf ball dimples give greater surface area than fluting and promote faster cooling while making the barrel more rigid. You forgot a sarcasm smilie right? |
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I dont know what dimpling does to rigidity/strength, but my engineering understanding of fluting is as follows.....
a fluted barrel is more rigid than a non-fluted barrel of the SAME WEIGHT. By fluting barrel, you weaken it, BUT it is still stronger than a NON-fluted barrel that weighs the same as your originally heavier barrel which now has flutes. from Strongest to Weakest.... Heavy Barrel > Fluted Heavy Barrel > non-fluted barrel that weighs the same as the fluted heavy barrel. |
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I dont know what dimpling does to rigidity/strength, but my engineering understanding of fluting is as follows..... a fluted barrel is more rigid than a non-fluted barrel of the SAME WEIGHT. By fluting barrel, you weaken it, BUT it is still stronger than a NON-fluted barrel that weighs the same as your originally heavier barrel which now has flutes. from Strongest to Weakest.... Heavy Barrel > Fluted Heavy Barrel > non-fluted barrel that weighs the same as the fluted heavy barrel. This was my understanding too. I'm curious how the dimples affect the barrels dynamic when fired Vs. a fluted one. What is the best compromise between Weight /rigidity/accuracy/cooling? |
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Gotta get someone willing to sacrifice some barrels.
Put one of each type in an oven and then take them out and see what rate the cool at. Next, bend 'em until they break! See how much force it takes to deform them or break them. Any materials engineers out there looking for a thesis? |
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Cause dimples look exotic... If by "exotic" you mean "high school art project" then you are correct. Dimpled barrels look exotic. Well, that's like, your opinion man. Personally I can't stand fluted barrels but love the look of a dimpled one. Fluting usually looks like a third grader took a dremel to it. |
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OK, I guess I'm wrong? For some reason everything I remember hearing about the golfball dimples were that they took more material than fluting and offered a faster cooling rate without compromise to rigidity. Ok, so that's not more rigid. I miss spoke. Does it compromise rigidity of the bbls?
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golf ball dimples give greater surface area than fluting and promote faster cooling while making the barrel more rigid. You forgot a sarcasm smilie right? Yes. Removing material will always reduce rigidity. I won't speak to the cooling rates because I don't want to do the math at 12am. But fluting, dimpling, any of that profiling will reduce rigidity. Stiffness or spine is a function (outside of inherent material strength) of outside diameter and mass. A 1" OD solid bar will be stiffer than a 1" OD fluted bar, or a 1" OD dimpled bar. The 1" OD dimpled or fluted bar will be more rigid than a solid bar of the same mass because it will be a smaller diameter. So for a practical example, a .75" OD dimpled barrel may be stiffer than a .625" solid barrel, while weighing the same amount. I did no calculation for that example, it's just an approximation. No removal of material can "make the barrel more rigid" relative to a barrel of the same diameter. |
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