Originally Posted by RACWIN375

I would look at your shell plate you may have gunk on it were the case ring goes
or the ring on the case???
when I do my 375win a long straight wall case with a big rim on some case the rim is a little mess up and the case won't sit square in the shell plate and catch on the powder funnel and don't start into the sizing die well
auto loader bottle neck should do better but I think that were it starts off wrong