Lapua turned the neck on the 223 brass. The “fat” portion on the bottom half of the neck, post sizing, is what used to be the shoulder on the original.
Okay, I can see that now. Just couldn't seem to get my head wrapped around it for a bit....
Seems like it if the internal dimension looks okay now, you need to turn the outside of the neck? Or run them through the die several times without the inside neck sizing puck in place and turn the insides of the necks one you get the outside massaged?
I"m starting to think boatanchor has the right idea- get new brass....
