Re: lapua brass .308 and .338
For my 338LM over time I've used Privi, Grafs, Hornady and Lapua with the Privi and Grafs coming back in the day when it was pretty tough to get 338LM brass at all.
By far, and I mean FAR, the Lapus brass held up the best so for 338LM that is all I have in rotation now. It is a heavy investment compared to other brands but the case life I am seeing with it has been great and I had an opportunity a while back to really stock up at very good pricing so I doubt I will need to buy much/any more for a few years.
For 308 I am exclusively shooting Lapua now as well though in the past I have run FC, LC and other brands also, especially in my gas gun. Now that I'm shooting my bolt gun only and can, even when hunting, collect most of my brass it is Lapua. I have a good stockpile here so I'm set for now and with the good case life on it like the 338LM I think it is a good return.
Basically for me I think that the longer case life I am getting helps offset the additional additional expense. Others may have different results.