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  1. D

    Different neck tension and seating depth from round to round

    Yessir, graphite is right.
  2. D

    Different neck tension and seating depth from round to round

    Basically just brushes it away leaving residual. I use a nylon brush on my Lyman prep center so it rotates in the case. Just a quick stab after chamfer and debur will do.
  3. D

    Different neck tension and seating depth from round to round

    Yessir, there is case neck lube to help with seating. It’s a fine powder but I find that dialing back the cleaning process and using some burnt carbon inside the case neck works too and that’s mainly what the brush is for. Just give it a try for yourself and see if that helps, anneal-prep-load...
  4. D

    Different neck tension and seating depth from round to round

    You didn’t mention if you sort your bullets for an acceptable COAL? If you are measuring at the ogive you shouldn’t see any variance in BTO but with matchkings you will most often find each bullet to have various length. As for the neck tension/seating pressure issue - try annealing - sizing -...