Originally Posted by kepp
I've thought about trying some of that Silver Bear...zinc coated steel casing. I've heard it does just fine. Just a little dirtier, maybe.
Try a few 20 round boxes first to make sure it will cycle in a AR-15 before you make a big purchase. Some AR's will have no probs .others will break extractor or extractor will tear off the head & leave the rest of the spent case in the breach. Or in my case. The shit just does not have enough gas pressure to cycle my Colt. It short strokes with all Commie block powders.