For my 2 cets. I always like to have the rifle present when I'm doing my case sizing to ensure I do the minimum amount of brass working.
I have 243 lever that requires a full length resize to minimum specs everytime. This also means I have to trim the brass every time. Hence I only get about 5 loads out of my brass. I brought a set of picks to test for that internal crack and do so everytime. You can see that ring on the outsize.
Had a trail boss round separate which stated this.
My bolt 243 and lever 358 only get a neck sizing and I can go 5-6 or more uses before I have to trim.
Z
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