Best bud and I are splitting 300 new 6.5 Lapua cases. Before sending them onto me he is prepping them; heaven only knows what he's doing. He weighed all 300 and the total range was only .65 gr from lightest to heaviest. WOW!
He did say the neck run out was as much as .003" but that should go down to .000" after first firing.
Alan
Alan