Depends where I'm going and what mood I'm in.Savage model 24c 22lr over 20 gauge, Winchester model 1500 20 gauge, Marlin model 39A with 2 1/2x bushnell scope or Ruger Single Six 22 magnum
me i like to shoot'em with my remington 597 that way if i happen to miss, which doesnt happen often then they get one more shot at life, and its usually head shot so i get 100% of the meat usually
Usually my Winchester model 1500 20 gauge or one of several .22s(model 60 Glenfield or 39A Marlin). This year I plan on using my Savage model 24C(22 over 20 gauge) or my recently accquired T/C Contender with the 410 barrel
For cottontails I prefer either my 1929-vintage Stevens .410 single shot with 2 1/2" 4s or my 1951-vintage Winchester Model 37 .410 single. Kills 'em fine and you can easily find the shot when you dress 'em out (shot are hell on teeth, as well as game!)
For jackrabbits I like .22 WRM; either my Savage 93M "classic" or my Ruger Bisley with the added Magnum cylinder.