I'm loading light 30-30 loads and the cases are cracking after about two or three reloads. I read on this site about not sizeing the cases as long as they chamber and this should make the cases last longer. I read about "flow" and think I am pushing the brass to the shoulder causing a crack between the shoulder and mouth that runs the direction of the case length. I am working up some cases that fully chambered in the gun. deprimmed them with 30-06 die so as not to tuch the 30-30 case (ie universal deprime) but the boolit falls right into the case.
I suspect I have to compress (resize) the mouth of the case so the deprimer stem resizes it but not push on the shoulder or side of the case.
If this is what I should do. I was thinking of backing the sizeing die up about a full turn so I don't size the whole case.
I hope I explaned my problem in words that could be understood. I am new to cast 30cal light loads and want my brass to last longer.
Thanks
Ted