as with Russ, not answering your question, but I think a .22lr long gun would be a better all around survival choice... I used to shoot a Daisy 717 air pistol in my garage (inside city limits)when I first started shooting USPSA...there are a lot of options from both sides of the big water...

I shoot a lot of .22lr for practice... a CMMG barrel and adapter unit dedicated upper (with Boonie Packer better mag adapter to use SW 15-22 magazines) for my AR, and an Advantage Arms upper for my G34... I reload 9mm and compete in PCC, so that is slowly edging into my use of .22lr