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Tanio Koba twist barrels

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Old February 9th, 2009, 11:36   #1
jotaerre
 
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Tanio Koba twist barrels

Hi to everybody!

Just to know : anyone knows the true specs of these barrels? I mean measures and inner gear .

Thank you!

JR
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Old February 9th, 2009, 14:15   #2
ILLusion
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What do you mean by "inner gear"?
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Old February 9th, 2009, 14:37   #3
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I can´t find the words for the lenght needed to complete one turn of the inner grooves.

Pardon for my English "skills"
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Old February 9th, 2009, 14:42   #4
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Twist rate. Like in real steel, 1 in 9" kinda thing he's looking for. Not sure why though, maybe looking to stabilize longer/heavier BBs. Lol
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Old February 9th, 2009, 14:55   #5
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Maybe he is talking about the inner diametre and the pitch?
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Old February 9th, 2009, 15:01   #6
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Quote:
Originally Posted by CDN_Stalker View Post
Twist rate. Like in real steel, 1 in 9" kinda thing he's looking for. Not sure why though, maybe looking to stabilize longer/heavier BBs. Lol
Only to know...

thank you!
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Old February 9th, 2009, 15:03   #7
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Quote:
Originally Posted by Qlong View Post
Maybe he is talking about the inner diametre and the pitch?
Yes, I´m interested in the inner radius and the depth of the grooves too.

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Old February 10th, 2009, 14:00   #8
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Got in ASF Forums :
Inner diameter of the grooved region: 6.15mm
"Regular" inner diameter of barrel: 6.03 or 6.04mm

And twist rate is 1 in 9"...



Thank you all!

JR
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Old February 10th, 2009, 16:53   #9
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Quote:
Originally Posted by jotaerre View Post
Got in ASF Forums :
Inner diameter of the grooved region: 6.15mm
"Regular" inner diameter of barrel: 6.03 or 6.04mm

And twist rate is 1 in 9"...



Thank you all!

JR
Wow, I had a good guess! I just thought of the best twist rate for the heavier 5.56mm rounds just as an example.
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