A no turn would allow you to shoot factory ammo if you wanted or had to.
I.E.
If your ammo was lost on the airline, factory ammo could be substituted.
A turn neck allows for less neck clearance which can be determined by you when turning the necks to a pre determined wall thickness.
For a turned neck I like .002" - .003" clearance per side of a loaded round. A no turn neck would have in the neighborhood of .004" - .006" clearance per side.
I would still skin turn your necks if you went with a no turn neck chamber just enough to clean up 80%. This will help in uniformity of neck diameter.
