Came upon your post re the "new" winchester primers (brass colored). I have not, as yet, used any of the large size, though I have run some 38 Special, and 9mm Makarov, using the small primer with their "new" product. I have noticed nothing that struck me as "unusual".
It is possible that you and or others have run into some "bad" primers, though I never remember running into such a problem myself, my experience with reloading being that primers seem to be the one constant. As Murphy observed, "anything that can go wrong, will".
As to Winchester's "response", that sort ot thing truly leaves a lot to be desired, possibly showing the falicy of having to many MBA's around, as opposed to people who really know what is going on. Also, you unfortunately may have run into the bad employee.