Home Forums Hunting & Shooting Hunting Rifles Which fast 6.5? .264 mag, 26 nosler, or 6.5-300 Weatherby?

I would be curious to know what the difference in barrel life would be for all 3 cartridges. I have a 264 Win Mag with lots of rounds through it that has throat erosion but still can shoot decently. Have thought about the 26 Nosler and to a lesser extent the 6.5-300 Wby but brass for them is extremely expensive here.