we had Demondaves out again yesterday and put about 210rds of 5.45 thru it...
funny as hell, didnt even have the camera on and he ripped that first mag full of 30 out with out a hitch.
turned on the camera to make the video and the next 180 rounds where right back to the old burst here, burst there with singles and double in between.
he blamed it on the camera making him nervous.
so same results as my first 6-7 outings: if you got enough ammo to play with it and get the hang of it, it works great!
if not your just gonna get frustrated & be shaking your head.
oh and it still works the easiest on 7.62x39 in my AR's...