Thanks for the great report.
I'll be very happy if mine shoots that well with the first couple loads tried.
I know what you mean about steamy loads. I'm aware they had to design in a mechanism to assist in primary extraction.
Since mine's a 6.5CM for light game hunting, I'll be feeding it factory ammo unless I see a strong reason not to. IMO it's tough to beat the good 6.5CM factory ammo.
I am seriously liking this rifle too, and expect that to continue when I shoot it.