Stopped by a fairly out of the way fairly more run down gun shop today and they had 3 boxes of 1k count 210M primers. The gentleman would only sell 2-100 ct boxes per day and since I haven’t had a ton of luck finding them I got them. This is what they look like, and the last 210M I bought were the gold medal with different packaging. Are these ones very old or something? I felt like that would be unlikely with the way you can’t find anything anymore and people have bought it all up, but is there a different explanation? Just want to make sure these are ok to use. Thanks