Like Schwag said, I tested this little beast out for the afternoon at Border Wars. It was light, powerful, and fairly accurate. I don't think I even touched the hop-up all day. Scored a couple kills with it firing .25s through the thick brush too, so power is not lacking. I would say that Colin's claim of 340 is not too far from the truth.
The only downside that I found was a fairly slow rate of fire, especially when compared to the TM model.