Pedro!!! Wait till you feel how great this gun shoots!!!!! I have a Whisper Deluxe, Turbo Tuned, GRT, with a Center Point 4-16x40 on an Accushot 1 piece. This thing is truly a tack driver!!!!! It loves CPL's, RWS Superdomes and Gamo Tomahawks mostly, but as long as you stay away from pointed pellets, cheap pellets, pellets under 7 gr and over 10 gr, you should be fine. It is accurate, quiet, cocks very smoothly after the tune, no kick to speak of, and just plain fun to shoot!!!! Enjoy!!!!
Joe