Curious about people building the 6-250's. Why not just do a 6 Creedmoor?
Straight neck up of readily available brass with no fire forming. Also, no needing to worry whether the current limited factory brass is going to be available in five years.
I think if you bought 300 pieces from GAP, you would have enough to last longer than your barrel. I am really intrigued by the Creedmoor case. Minimal taper and a 30 degree shoulder. The 22-250 begs to be trimmed.
I think a 22 Creed would be a great round. No dicking with fireforming like with the 22-250AI.
