Boats,
I understand very well what you are saying, I load for a couple rifles using a combination of different dies.I just have more experience sizing rather than turning the heads, although I usually turn a groove with a parting tool just ahead of the rim, to avoid closing the primer pocket.BTY, one of my "one of these days projects" is a 25 Krag inproved. I have a "takeoff" barrel and Siamese Mauser action set aside.
I usually have to do my own rifles, I can't afford to pay for a "turn key" job.
To size the heads, you have to force the cases all the way in, to the rim, then drive them out with a punch. Otherwise the shellholder gets in the way.
Mike