I sort all my fired brass for my bolt guns by seeing if they chamber as they are, in the rifle.
My action will tell me straight away if they are worth keeping by how far it will close if they do not chamber easily.
If they are a just a bit out I visually check for imperfections with a magnifying glass, if all good, I measure to see if they need trimming. Rare in an Ackley.
I use bushing dies to neck size 3/4 of the neck.
Then using good lube, bump the shoulder around 1-2 thou. I never run the spigot through to size the internal neck unless to repair one that is deformed.
If your dies are good you do not need to touch the inside of the neck other than to clean and graphite.
Newer cases chamber perfectly after this process.
If they still do not chamber but are close I run them through a body die. I then mark them as they are pretty much at the end of their life.
I load them a couple more times then bin them for the scrap man.
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