Thanks all for the ideas; I'll be googling for a while.
TR, I saw some of those Chipmunks at a local gun show last weekend. Pretty neat, even the one with a bright pink stock (and integral action lock). I'll have to research the Colibri ammo more.
Air.177, if not a barrel break/pump, would you recommend CO2, lever pump, or something else. Again, this is for a beginner rifle, not high end competition. What kind of trap do you use for shooting in the apartment?
LR, I didn't even consider the wind, which is pretty significant here. Thanks for the heads up. Oh, the washer/dryer is upstairs, so I should be safe.