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Thread: Dimpling a barrel

  1. #1
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    Dimpling a barrel

    I am thinking of making a rifle. Looking at using a BCM 18" SS barrel. I am thinking of having the barrel dimpled or fluted to drop the weight some, as I plan to use the rifle in the carbine roll.

    Do yall know how much weight reduction I can get by dimpling the barrel or having it fluted? I would think with the dimpling the barrel would cool much faster because of the added surface area. is that correct?

    thanks.

  2. #2
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    You're not going to see a crazy difference from fluting unless you're starting out with a heavy barrel to begin with. You might email ADCO and ask about the weight difference. Have you considered one of the .625 lightweight barrels from like DD or BCM?
    Last edited by mkmckinley; 11-18-10 at 18:50.

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    What I am lookin for I think....is a 18 inch rifle length gas system barrel. The one I am lookin at is a medium profile. I have considered a light weight barrel but have decided against it.

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    If you want the most weight shaved off you need to recontour or reprofile the diameter of your barrel vs. fluting or dimpling. You will hear many arguments from both sides of the spectrum in terms of what the potential effects are of performing these mods to a barrel.

    If I were going to do it I would let the guy who does the KAC barrels do it in their proprietary pattern.

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    Do you happen to have the contact info of who does their work or know who does it?

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    PM sent
    Last edited by TRIDENT82; 11-18-10 at 19:41.

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    Like Trident said, recontouring the barrel will reduce the most weight but the dimpling does look cool or at least I like it. Here is a few pics of a rifle I had ADCO recontour the barrel under the handguard and dimple the front end. Turned out great and a good bit lighter, balances out really nice.





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    ^^^^one of my favorite rifles^^^^

    esp. considering how it changes form so nicely in your hands

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    If you are just looking for a lightweight SS barrel have you considered the Noveske Rogue Hunter upper? http://noveskerifleworks.com/cgi-bin...since=&status=

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    Accuser, that does look real good. Is that a 16" barrel?

    Are there any downsides to having your barrel dimpled?

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    Quote Originally Posted by Belmont31R View Post
    If you are just looking for a lightweight SS barrel have you considered the Noveske Rogue Hunter upper? http://noveskerifleworks.com/cgi-bin...since=&status=
    It says right in the description found in the link that the barrel is an 18" SPR, which I believe is 2lb 8oz. I believe that is the common weight of 18" SPR profiled barrels. The overall weight of the Noveske upper is the the same, if not more than almost every one of the BCM 18" SS410 uppers. http://www.03designgroup.com/technot...ht-comparisons

    ETA - The Noveske weight may include BCG and CH. I didn't pay enough attention to tell.
    Last edited by royta; 11-19-10 at 07:01.

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    Quote Originally Posted by bubba04 View Post
    Accuser, that does look real good. Is that a 16" barrel?

    Are there any downsides to having your barrel dimpled?
    Yep, 16" barrel. I haven't found any downsides after having the barrel dimpled. Matter of fact I sent ADCO another one (10.5") shortly after to be dimpled under the handguard.




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    ^^

    That's sexy as hell!

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    God damn that looks good.

    Doesn't dimpling the barrel help with heating? Something about more surface space?

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    I can see the benefit of weight savings, but does dimpling impart stress to the barrel, and does that affect the harmonics to the point where accuracy is adversely affected?

    mbogo

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    Thanks for all the compliments! I have noticed that the 16" barrel seems to cool down faster after dimpling than when it was in it's original form. I haven't noticed any accuracy changes since dimpling but I don't do any mag dumps nor do I have a full auto lower to try. I hope to take a carbine course next year using the 16" barrel so I guess I will see then if there are any negative affects.

  17. #17
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    That does look real nice! What was their turn around time?

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    Quote Originally Posted by bubba04 View Post
    That does look real nice! What was their turn around time?
    I think it was about a week door to door. I know each barrel was gone less than two weeks for sure.

  19. #19
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    I'm sending out 3 of my Noveske barrels for KAC dimples.
    I'll post a detailed thread with before and after weights, pics and range reports.
    I'm sending:
    10.5 SS
    14.5 SS
    16 SS 7.62

    Big $$$. Ugh.

  20. #20
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    Quote Originally Posted by natdm View Post
    God damn that looks good.

    Doesn't dimpling the barrel help with heating? Something about more surface space?
    Without doing the math, I think it capable of having a greater surface area over fluting. Not sure if it works out that way in practice though, it may just be more looks and less function.
    Dark Star Gear

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