6mm Creedmore Question

Getting ready to order a new barrel and have a question for the guys that have been using them. What free bore and neck diameter for the 6 Creedmoor. I'll be using 107 SMK or 108 Horn ELD-X, maybe 105 match hornady. For brass Starline or Peterson. Don't think I'll be using any Berger 105 Hybrids and for sure never turning brass again.

 

I think the .275" neck is perfect if you want a no turn neck with minimal clearance.

 

Is this a pre-fit barrel? Just asking because if so, check to see what the reamer scepcs are for that manufacture barrel in 6 CM.

 

Yes thinking about a prefit. I have their reamer print and its 277 neck 183 freebore which I'm pretty sure is sammi. I'm curious what the guys shooting the 105's and 107 smk are using for freebore.

 

275 is a good no turn neck. .277 little big! 145 freebore perfect for 115 vld. Also works for the 105.

 

I ran the 110's and 107's. Yes the .277 is definitely a no turn neck. (sounds large)
I was using .271 and .270 custom honed FL sizers on Lapua brass.
You should be able to ask who ever is chambering it, what the reamer dimensions are.