1,000-round box of Winchester M22 .22LR in stock on Cabela's website, available through slickguns.com
http://www.slickguns.com/product/winchester-m22-4999
Click on the "Go To Store" button, and it will take you to Cabelas.com.
There is a limit of 1 per order. But apparently there isn't a limit of how many orders you can submit.