Barrel life with be shorter with the 26 Nosler. There's no way around that.
If barrel life is a factor it's not the choice to make if you're going to do a lot of shooting with it.
If you're just going to sight in, work up a load, verify and check occasionally and hunt with it then it's a great choice.
I love the .264wm and have a great shooting 700 CDL SF but my next rifle is going to be a 26 Nosler built on a stainless Model 70 action with a 29" Stainless Fluted #3.5 Benchmark Barrel in a McMillan M-40 Stock.