Wow, dude...so correct me if I'm wrong but it seems to me you took the replies from your other thread a little too much to heart and are dumping a perfectly good battle rifle? At a time when RA might ACTUALLY be FINALLY improving their customer service. And you've fired only 20 rounds? Check out the XCR-M Accuracy posts by AlaskaGuns if you're worried about that aspect. I haven't read any negative performance results either with any ammo.
i'd just recommend against making a seeming knee-jerk reaction based on what I perceive to be your logic.