I've not shared your experience w/Remington shot shells. Agree w/Ted. I'd try calling them again tomorrow and if you can't make contact then I'd suggest that you write them a polite note and include a box top &/or pic of your ammunition received and issue experienced.
In recent years I've seen some Remington 20 ga. Gun Clubs that the steel head pulled away from the body after firing and some AA 28ga. skeet loads that had longitudinal splits in their brass heads right out of the box before ever being fired. In the first instance I think/suspect it may have been caused by an overly large chamber dia. In the second, something to do w/the annealing or gauge[as in 'thickness']of the brass used in those heads. Stuff happens, but not always for the same reason.
I've some friends that are very high volume target & tournament skeet shooters who load the Remington Gun clubs in 20ga. exclusively. They are buying them new and reloading them 6~8 times before discarding them. Zero problems and I see and/or shoot w/some of these guys a couple of times a week on average.
A number of years ago I purchased a very large quantity of 20 ga. Federal 7/8oz. field ammo originally made for use on dove & quail. It was perfectly good ammunition. I stored it in a warehouse where the temps could get like the inside of a car parked in the Texas heat w/the widows rolled up. Don't know that it ever froze in there, but it might have. I shot the last of that ammo about a year ago. Sometimes I would find a cartridge that had the plastic split at the crimp and it would be bulged enough to not want to feed in a pump gun, but you could twist it into the open chamber of a double gun w/a little effort. Was it defective ammo? Nope, just improper storage on my part and not paying attention to the fact that some ammunition has a definite 'shelf life' because of the type of plastic used for the case. Just saying.
