I buy it whenever I can find it.
A have a few thousand rounds saved up.
I find out when the local stores get ammo in as part of their normal shipments and then I appear
Walmart is a pretty good source in our area... Bimart... Cabela's... Fred Meyers... and all the sporting good stores.
But nobody has any on the shelves... You gotta get there early.
I have two 10/22's... one for each hand...