What’s wrong ? Chamber, brass, dies

[Dt219]

I am noticing some weird stuff with my brass that’s been fired in my lilja barrel. The headspace measures ok from what I can tell but the brass is not had but 3 firings on them and not hot loads. I size them with a forster full length die. The 2 pieces on the left is from the lilja and the 2 on the right is starline brass fired from a PF criterion barrel that looks normal to me that I size with hornady dies The pronounced ring is .275 up from the base of the case head, and measures .445-.447 most every piece is looking like this fired from my lilja . What is wrong ? Is my chamber too fat towards the rear ? Is the brass junk ? This brass pictured is fired brass that’s not been sized !!! Please point me in a good direction feel free to ask questions I will do my best to get an answer