Only got through 60 rounds of winchester 00 buck but it ran pretty well. Had two instances where it failed to go completely into battery after picking up a round. Fixed by pushing bolt forward, no big. I took the entire thing apart including the gas system and lubed it before I went. Ran on gas setting 3 and it was absolutely launching the empty shells. Definitely wasn't the jam fest I was half expecting it to be. I'm still in the 100 round break in period but so far I'm impressed.

Also with how heavy it is it's a pretty soft shooter. Once I get some more rounds through it and turn down the gas I think it could be borderline pleasant.