I have a .177 RWS 34 that has taken a good many pests, they work well but won't knock down nearly the critters my .22 Discovery PCP will...I haven't shot the RWS 34 in a couple years, the Discovery does everything the 34 does and more when it comes to larger game.
If you plan to go with a spring air rifle the 34 is awful tough to beat, they shoot lights out and have the feel/weight of a real rifle. You will need to practice different "holds" with it as springers are very hold sensitive.
