I currently shoot a 6.5 RPR, gen 2. I have been shooting this regularly for approximately 2 years, maybe a tad more. I don't know exactly how many pills have gone down the barrel but probably around 2500 rounds. I checked using my hornady tool to see what the distance to the lands were expecting maybe 0.010"-0.015" deeper than factory new and maybe I would then adjust my bullet out the same....holding a typical 0.020" jump to the lands. To my surprise, the thing is 0.050" deeper than when I first bought it!!! Question is.....is that typical? I don't run it hot, my velocity with a 140 ELDM using H4350 is right at 2700 fps or a smidgen less. I have been thinking of getting another barrel in the future and maybe I need to be getting that going a lot sooner than I thought.