The last time I contacted Winchester about a bad batch of .223 Rem cases I had bought (about 30% had split necks after the virgin firing), they told me to send in the brass on my dime, and if they deemed that there was a problem with it they would refund the cost of the brass (but not the shipping!). The cost of shipping was going to be half of the money I had into the brass, so I decided just to live with the losses when necks split and avoid the hassle of sending the brass in and trying to source some more. That was the last time I bought new Winchester brass as long as there existed some other alternative.
