If you have enough ammo to last a while, it might get you by.
I would prefer at least .22 WMR.
And... something to consider:
All US-manufactured .17 HMR comes from CCI. -Remington, Winchester, CCI, Federal, Hornady, Fiocchi... all of it. If anything happens to their production capabilities, you're hosed.
Keep enough on hand to be comfortable, or you could find yourself facing a rather unpleasant shortage and a useless 'survival' gun.
"Such is the strange way that man works -- first he virtually destroys a species and then does everything in his power to restore it."