What do you want to do with the rifle? I was thinking if you want to shoot targets and make that $700 barrel last, go .308, but the only benefit of 308win is barrel life, other than that it is probably the most boring cartridge in the world. That said, I have a love affair with the 300 win mag that I just can't seem to get over. I sold my 300 win mag and built a 30 Nosler when it first came out, thinking it would out perform and replace my 300 win mag. It didn't take but a month and the 30 Nosler was for sale and I was wanting a new 300 win mag. I don't see any benefits to the 30 Nosler or the 300prc over the old classic.