New rifle load development 6mm creed

Lapua only makes 6.5 creedmoor brass, you will need to stick to hornady, starline and a couple others. You could buy the 6.5 lapua brass and resize the neck to 6.0 and neck trim.

I use hornady brass and have no problems.
 
Yes, I just run it through a Forster full length die. Been using the standard FL die more the my bushing dies lately. Just run an expander mandrel in them right before priming & loading for really consistent neck tension.
 
What about Starline brass?

I'm prepping to load 6CM for a new build as well and will be very interested in the responses to this thread.

I haven't ran their 6mm Creedmoor but I have used some of there other brass. I'd put it on par with hornady brass or better. Typically it's cheaper than Hornady. Not as good as Lapua/Peterson/Alpha.