6.5 grendel extractor

Has anyone had trouble with 6.5 grendel bcg extractors cutting deep grooves in the case rim ?

Mine is not PSA, but yes, it butchers cases. I dont mind because 95% of my grendel is steel, but i expect the same would happen to brass.

Who’s bolt are you running ? Have you had any broken grendel extractors ?

I bought it so long ago I dont even remember what retailer, but it wasn’t midway. I do recall that I looked specifically for one made for grendel, not a re-cut 5.56. And never a broken extractor, although now I feel like I ought to have a spare lying around JIC.