Recently re-discovered these in a cleaning spurt of what my wife has labeled my “POWDER ROOM”. When I first got them, I was going to use them for shooter ammo, but when I opened the box, had to do a double take and read the back. My question would be when these round were “manufactured” and when did Frontier finally start making their own, (albeit with Winchester brass), ammo. Oh, by the way, answering a question from one of the threads last week about headstamp bunters and their re-use by grinding off their previous year to fulfill a double digit year (i.e., FC 54 to FC 5 to denote “55”), you can note that there is a L C 6 6 in the fourth row back, second from the left. Don’t know if FC did this also. Thanks, Bruce.