I was having issues feeding steel as well. I thought I had mag or feed ramp problems, but they disappeared when I switched to brass. Maybe there was another issue, but I'm done with steel cased .223 for the foreseeable future. Buy AE XM193, it's almost as cheap as wolf or bear steel case.
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"Always carry a small flagon of whiskey in case of snakebite. Furthermore, always carry a small snake." W.C. Fields
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