I just recieved my new Mossberg 930 SPX and i was so very excited to get it in my hands and to the range. I followed the advice of many and field stripped and cleaned the weapon before taking it out for a test drive. The problem im having is when i pull back the charge handle to load that 1st shell (2 3/4) the shell dosent chamber properly, even if i pull that charge handle back really hard. sometimes it loads and sometimes it dosent. this is my only complaint but it's a big one. ill probably call mossberg on monday but im really bumed out about that. Any advice ??