You will wait forever. Warranty is handled by approved shop, importer or the retailer that service those rifle. Not much going wrong with a bolt action or a Rem 870.
Remington have been out for some time and no ‘peanut’ sale have happened or will happen. There is just too much demand for guns in general and many will pay what is asked for to get a Remington be a 700 or a 870. Scarce model will fetch more money than MSRP.
My guess is Remington will be back producing guns quite fast. It just make sense for the buyer -investors to re-organize and get money rolling their way.
Look at Ruger for the Marlin line..they will be back in production next year. I have not seen flash Marlin sale at peanut price for that brand either.
As for ammo - there is too much demand for ‘sale’. People who like or have a rifle that like Remington ammo with snatch the last boxes at asking price. They are mostly gone in shop around my area.
Bushmaster are now prohib offering...
Look at used gun..nobody let it’s Remington or Marlin go for peanuts..