In recent years I've been using a bunch of different brands of rifle brass, because so much of the stuff from "traditional" manufacturers isn't nearly as good as it used to be.
The new brands I've used have included such commonly known brands as Hornady, Lapua, Norma, Nosler, and not-so-common brands including Jagemann, Jamison, Peterson, Prvi Partizan, Quality Cartridge, RWS, Sellier & Bellot and Starline. All have beaten the traditional stuff in consistent dimensions, and often in toughness. Some of them, however, don't make .270 Winchester brass, but most do. Others must be ordered, and you can easily find prices on-line--but quite often I buy Hornady locally, because a couple of stores stock it, and have found it consistently good, and relatively inexpensive compared to others.
Hornady is golden in my .270.
