Here's a good site that covers a lot on the 6x47lapua, 6mmHOT Home Page
It's running a 107smk with 38.5gr H4350 for 3050fps.
There's a lot to be interpreted to whether or not a barrel is burned out. My general personal interpertation is when a gun won't shot 1/2moa.
I don't keep targets but the rifle will shoot at least .3moa right now. The last I zero'd groups were in the .2's.
I fully expect 2000rds but wouldn't be suprised with 2500 rounds.