I have a CSSPECS 8 round steel magazine that I bought quite a while ago. When I first got it I ran some rounds through it and it seemed OK. I haven't done anything with it in quite a while, but I loaded it up yesterday and tried to use it. I first loaded 5 rounds in it and all 5 ran fine. Loaded up some more and now the first round "jams" and will not load. Took that round out and tried again, same thing.
I took those rounds out and put them in a different mag and all ran fine. loaded up another mag and it ran fine too.
Loaded the CSSPECS mag up again and the same thing. Puzzeled.
I am going to try to get a hold of CSSPECS and discuss it with them.