There are plenty (well some anyway ) of big bore air guns that will kill anything from elk to mice . I use my air gun as somthing of a backup , so I havn't upgraded to somthing fancy yet . I'm using a Winchester 800 , I have taken many rabbits with it . For power , I think it's great . The trigger sucks though . It's the hardest trigger I have shot . Depending on your budget , I'd go with an Airforce Condor . The rifle isn't too much , but having your own "air supply" will set you back quite abit more . Do some research before you choose . There are some great 9mm rifles , but again the charging could cost you .