6-6.5x47 / 6xc / 6.5 Creedmoor neck lengths?

[Phil]

Can someone help me fill in the blanks.....

I need to know the neck lengths for the following cartridges...

6-6.5x47 Lapua

6XC

6.5 Creedmoor

 

[357Mag]

Phil -

Howdy !

IF my math is right, in ascending order of neck length:

6XC Tubb = .240"

6.5 Creedmoor = .2594"

6 X 47 = .328"

6.5X47 = .332"

My " Deep 6 " wildcat = .351"
( " Deep 6 " chamber is made by running 6mm Remington reamer in " short "; for a .466" base diam )
Utilizes 7X64 Brenneke as parent brass ( Norma, RWS, Hornady; Speer. LR primer )

I did math based on case drawings... mostly from 6mmbr.com

Hope this helps ?

With regards,
357Mag