Re: Case Neck Thickness Variation
You didn't say your chamber neck diameter.
Personally, I cull anything outside .0005 total variance around necks, and covering desired thickness(whether turning or not). I do this to reduce runout down the road, and to ensure I'm not overworking necks in sizing, and to match my brass in H20 capacity.
Your variance spread is higher than normal though.
What are you measuring with?