Came across a 5 gallon bucket of WCC 11 and 12 headstamped brass a few months ago and finally got around to sizing it prepping it and so on. Loaded some rounds and came to find out many of them wont even go into battery fully and lock up my BCG enough for me to have to do the slam remedy. Ive used RCBS small base dies to size them and still no luck. They were acquired from my local military base here in NC and I'm guessing they were fired out of a 249 with horrible headspace and timing to not function correctly. Anyone else ever ran into this problem?
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