Sounds like Federal is already making factory loads for it.
I'm wondering how they get 90gr SMK's into the case at a length that will fit in an AR magazine?
Looks cool but I think I'd rather have one of the 6.5's (for now anyway). I plan to eventually add a MV in 223 (and maybe another upper in 300BLK if I can get my hands on another upper receiver). So far my MH has performed very well and I wouldn't hesitate to buy another rifle from ATRS after my experience so far with them.