It's all good!
I have spent all kinds of money on brass, Remington, WW, Hornady, Nosler, Lupua. I would have to say that the Lupua and the Nosler seem to be the most consistent BRASS, not always the most accurate however! I have a ruger that will shoot Winchester brass all day long. Switch to Lupua and the groups open up. I have a Rem700 in 300 win mag, broughton 5C barrel that will shoot Lupua brass all day long, Nosler brass most all day, Remington brass real good and just plain takes a puke if I try winchester or Frontier brass. I also find that some rounds like the old standards: 06's, 270, 08's ect... don't seem as picky about brass. Custom barrels, at least mine always like the highend brass better and some of the factory barrels, well they are just freaks and shoot anything loaded any ol way. I think it's more a matter of sorting and preping, good loading skills and very good shooting skills. I don't know, just wanted to add my two cents I guess.