Ok I took my .40 out today for the first time and put 30 rounds down range. Had 3 10 round clips and on all 3 mag's i had at least 2 jams is that normal since it is brand new out of the box? Tight springs mabey? Just curious. Was shooting Winchester 40 S& W 165 GR. FMJ. What it was doing is the slide would stay back like the mag was empty but there were still rounds in the clip.