6BRX reamer specs.

[1shot]

I intend to build a dedicated mid-range rifle in 6BRX, and I will be shooting JLK 105 bullets exclusively. I turn all my brass for consistency and will continue the practice with this cartridge as well. I have found several no turn reamer spec dimensions, but I’m looking for info regarding one for turning necks.
Since this a ground up build in terms of this cartridge, can anyone help me the neck diameter and freebore length I will need?

Regards,

Lloyd

 

[tclaunch]

A .140" freebore, and .269" ND will cover many bases.

 

[1shot]

Thank you sir.
Lloyd