kk500 barrel pattern.

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hyeyong76
Posts: 11
Joined: Fri Apr 25, 2025 4:00 am

kk500 barrel pattern.

Post by hyeyong76 »

Other company rifle barrels are just circular.
I wonder what role the kk500 stainless steel barrel pattern plays.
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Tim S
Posts: 2096
Joined: Mon Jan 03, 2011 11:33 am
Location: Taunton, Somerset

Re: kk500 barrel pattern.

Post by Tim S »

Those grooves are called flutes. The flutes reduce mass, without reducing the diameter of the barrel: ie less mass than a circular barrel of the same diameter, but more stiffness than a barrel of equal mass (but smaller diameter). It's exactly the same concept as the fuller on a sword.

The idea isn't new. Walther fitted fluted barrels (made in Scotland by Border Barrels) in the 1990s/2000s. Unique won two Olympic golds (Atlanta '96, and Sydney 2000 3x40) with fluted stainless barrels. And Feinwerkbau fitted a fluted barrel to the 2700 lightweight.
Last edited by Tim S on Sat May 03, 2025 7:12 am, edited 1 time in total.
hyeyong76
Posts: 11
Joined: Fri Apr 25, 2025 4:00 am

Re: kk500 barrel pattern.

Post by hyeyong76 »

Tim S wrote: Sat May 03, 2025 4:08 am Those grooves are called flutes. The flutes reduce mass, reducing the diameter of the barrel: ie less mass than a circular barrel of the same diameter, but more stiffness than a barrel of equal mass (but smaller diameter). It's exactly the same concept as the fuller on a sword.

The idea isn't new. Walther fitted fluted barrels (made in Scotland by Border Barrels) in the 1990s/2000s. Unique won two Olympic golds (Atlanta '96, and Sydney 2000 3x40) with fluted stainless barrels. And Feinwerkbau fitted a fluted barrel to the 2700 lightweight.
Wow, I was curious, and thank you for the information.
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