Hmm.... 1895 CB Marlin in 45-70...although my...well, my brother and I had to share it when we were little, so I guess it's still both of our's gun -- Model 94 Winchester. Could use 22 CB, short, long, LR, anything pretty much. Killed an awful lot of rabbits.
As for a pistol, my father's 22 single action Ruger, or his SAA Colt in 357.