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7/7/2010 12:08:51 AM EDT
What does fluting/dimpling do for a AR rifle?

Is there a difference between the two in performance?

Thanks.
7/7/2010 12:19:56 AM EDT
[#1]
used to lighten the barrel and aid in cooling. no need really.
7/7/2010 12:26:37 AM EDT
[#2]
Weight reduction is the main objective (as stated above). In my opinion heat dissipation is a selling point. Again, my opinion. Some dimpling/fluting jobs look kinda cool actually.

J
7/7/2010 12:28:53 AM EDT
[#3]
As stated in the first 2 posts.  Just Don't DIY with a dremmel.
7/7/2010 1:24:16 AM EDT
[#4]
Quoted:
As stated in the first 2 posts.  Just Don't DIY with a dremmel.


+1

Classic thread.
7/7/2010 3:04:03 AM EDT
[#5]
Quoted:
used to lighten the barrel and aid in cooling. no need really.


To add stiffness for an equal weight barrel at least with flutes.

I would not spend the extra cash on one again.


7/7/2010 4:24:12 AM EDT
[#6]
Quoted:
Quoted:
used to lighten the barrel and aid in cooling. no need really.


To add stiffness for an equal weight barrel at least with flutes.

I would not spend the extra cash on one again.




To put it little differently (but same thing as what Greg said)

To reduce weight while preserving stiffness

I would not flute the barrel if it is shooting good right now.  It will probably affect the harmonics of it.

7/7/2010 4:36:32 AM EDT
[#7]
Some people flute the barrel simply for looks.  It does look good on some guns but I agree that it's not necessary.
7/7/2010 5:04:14 AM EDT
[#8]
You can tell a difference in weight. I have a fluted 20" barrel and it makes a difference. As far as cooling and accuracy, I dont think it really matters. I would not pay extra for it but if it comes on a barrel already, its nice.
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