Nosler reports most of their customers have gotten 1000 rounds or a little more from Nosler rifles before accuracy starts to drop off, and one guy got 1500. I've put 300-some rounds through my 26 Nosler Liberty rifle, and while there's some erosion just in front of the neck portion of the chamber, it's not into the lands yet, and the rifle shoots very well. But on warm days I cool off the barrel with ice-water when it starts to get hot.
