I want (need?) another AR and there are some decent choices in my range, but I shoot a lot and have had to go with steel-cased ammo since the panic buying ensued. Does anyone own an M&P or PSA upper that gets a steady diet of steel-cased 5.56? How's it working for you? Any issues with extraction? Would reaming the chamber help, without raising additional issues?
I've only shot steel from a friend's RRA mid-length, and since the steel cases don't expand the rather dirty ammo (Wolf) was gunking up his chamber pretty badly. We mortored quite a few out in one day. However, I've read on the webz of S&Ws and Colts just burning thru the Russian stuff like butter, with not a single issue. Does anyone have recent experience running steel-cased 5.56 thru either of these two weapons?
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