I dont want to kill any dreams here, but I own one of these. It's picky on what it eats. It blew out primers on over 60% of winchester 223 55gr ammo, and is cratoring the primers on american eagle stuff. I tried a 5.56 round, blew the primer and blew out the bottom of the lar15 magazine. I have it on video. It's also loud as hell for a 223. Im thinking mine came from a bad batch. Not sure how to deal with this over pressure issue. The primer bits clogged up the bolt and ended up damaging the firing pin.
I would treat this more of a toy then an actual shooter.