Wholesalers announced in the spring that they wouldn't be getting anymore until 2014. Not sure why that was and why/how they knew this so far in advance. Must have been a supply chain issue with Remington. Those accutips have been the hottest selling slug since SSTs were introduced, no reason they wouldn't devote all resources possible to keeping supply up. Must of been a serious shortage of something.
You aren't likely to find any for sale on shelves. Might check gunbroker and prepare to pay a premium.