600 Nitro Express original Twist and groove No ?

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24 December 2011, 05:51

tankhunter

600 Nitro Express original Twist and groove No ?

Can anyone enlighten me pls, on the original Twist rate of the 600 NE and the number of rifling grooves ? Thankyou

24 December 2011, 06:07

CCMDoc

Sorry TH,
I forgot to check my book for you today and won't be in the office til Wednesday.
If you don't get a response soon, PM Cal.

NRA Lifer; DSC Lifer; SCI member; DRSS; AR member since November 9 2003

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24 December 2011, 09:07

Mike Brooks

I scanned quickly thru Cal's book and didn't see anything. I will look better later on. BUT my 600 is a 9 groove with a 20" twist. I just ran a brush thru it.

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24 December 2011, 15:04

Lefteris Vassiliadis

600 N.E., CIP specs:
land: 15.34mm
groove: 15.57mm
twist: 762mm
grooves: 7

Lefteris
www.europeancartridgeunlimited.com

27 December 2011, 00:52

tankhunter

Thanks again CCMdoc and Mike and thanks Lefteris Vassiliadis for the specs on 600 ! seems like that is a 1 in 30 in Twist
Cheers thanks again

27 December 2011, 03:56

Nitrodave

One in 30" RH twist is correct.
7-grooves at .161" width
ND

Stephen Grant 500BPE
Joseph Harkom 450BPE