Buy the best you can afford, as the difference is beyond what you can imagine. the lowest price gun that I would buy is the RWS 34. If you can find a used FX, or such buy that. I had all the spring guns, and the gas rams, and the pump up, Bennie, Sher. and so on, but they cannot compare to a good precharged Daystate, Air Arms and so on.
However, what ever you buy, get only the best pellets, JSB, domes, and or Crosman Premier's, don't waste your money on the other pellets, as they are not designed for velocity retention, BC value, and will not be as accurate at the longer distances, so don’t waste your money...
Jim