Thread: Do you always need to case trim?

Hi unless there is something wrong with your chamber or you are reloading to outlandish pressures there is no need to keep trimming. I check it a few every 3-4 loadings and trim if needed. I have some .223 Rem brass that hasn't been trimmed in 8 loadings and its still fine. Trimming your brass will not affect your loaded length as it is the seating die that sets the loaded length not the brass.
I hope that semi clarifies things.