Mine was "MOB". I ran a treatement of Tubb's Final Finish bullets and now it's "MOT" minute of TractorAlot of folks have said similar about their Mini 14's regarding accuracy. (Minute of barn...lol) I must have the only accurate Mini ever produced. I will say that out of the box, accuracy was horrible due to the factory 95lb trigger pull and 60 grit action....but after a trigger job and polish of the internals, this thing fell right into place. Everyone who shoots it is pleasantly surprised. Guess I'll just leave it alone, not tempt fate and call myself lucky.