I have one. As far as how the bolt runs mine runs real well but I took a ceramic stone and smoothed the edges of every slot or edge on that bolt. Its quiet and runs smooth now. As far as lightness the Ruger RPR is around 7 lbs. A synthetic stock CZ 457 weighs about 5.5 lbs. I bought one of the CZ's for my girl and I can tell you, out of the box, the bolt is smoother, the gun is lighter, and it is more accurate. My Ruger is a fun gun but I cant tell you the accuracy is great. I shot her CZ and couldnt believe how accurate it is. Get her that one and after she gets used to it and you want to progress on up, get her a chassis, a new barrel, and put a new gun together with the same action she is used to shooting.