A lot of times an item will be in stock but won't show up if you just go to their website and click on Ammunition etc.

A bunch of people post links to available 22lr ammo in this thread:
OFFICIAL (IN STOCK) 22LR AMMO THREAD

You can look there every once in a while to see if there is anything at normal prices. Sometimes people post links to cabela's website there. You've got look often and be quick. There is usually a 1 box limit of 22lr, which I guess you're looking for since you're in the 15-22 section.

And there are also some sites that have links to available ammo and show prices per round etc. I started to post a link to one but I think it might be breaking the rules of this forum, not sure.

I saw there were some CCI standard velocity available on cabelas website earlier today but were out of stock when I saw the new link to them. I was lucky enough to get a couple of those a month ago or so. Good luck.