I bought 200 .30/06 Lapua cases hoping to get 100 cases with minimum variation. What I discovered surprised me. 188 cases only varied 1.2 grains and the other 12 spread it to a total of 2.2 grains. When I checked neck thickness, figuring I'd have to turn necks, I found out that the thicknesses only varied. 001. I didn't turn them. Also after sorting the cases by weight and dropping the box, I just plunked the cases back in the box without reweighing them for sorting. The necks are also fairly thick, running .014 to .015" in range.
I also shoot Lapua in my 6mm PPC and .30 BR.