Had my first worn out and split 45 case last night. Head stamp was WCC 84. 30 years is not too shabby for a useful life span. This one datapoint could be a statistical anomaly though as I do have some very usable brass from the 60's.
Been enjoying the cooler weather so I can exercise the Dillon in the garage without frying while I work on 45 inventory for this year's trips to the range.