New to me super 1050, bought off enos i am experiencing a jump like feel and clunking noise/pop when loading, when machine is empty runs smooth as butter. I tore the upper down down cleaned and lubed, reassembled hoping that was the issue but to no avail. Originally I thought it was in the sizing die, but it's not after testing the same die in my Pro 2000, I get no hang up. I have scoured the forum and found like topics and have tried suggested actions but not the remedy. I feel like the lower bearings/ pine assembly have some slack and play, but not sure what that fix would be our if that would cause the noise. I've loaded 38sc and 9mm, any help would be awesome. Thanks in advance