I have been trying to get my Sortie to operate semiautomatically since I received it in February. I even sent it back to Hatsan-USA for repairs. Sometimes it would shoot one pellet and sometimes three before it had to be recocked. Finally I stumbled onto a condition where it will fire the whole magazine without a stoppage. The condition was using a starting pressure no more than 100 bar with 14.4 grain pellets. After a magazine of 12 pellets was fired the pressure would be just in the yellow at about 80 bar. This means you have to recharge with air after each magazine but it does now fire as it should. Haven't checked with a chrono yet for velocity.