My SR9c has a habit of coming up with FTFs when I run Winchester white box 115 gr FMJ. Once in the past thee were 9 rounds with strikes on the primer that did not go off. Yesterday I had 12. I have not had this problem with any other ammo, either type of round or manufacturer, including hollow points. My shield has no problem with them either. I bought them as they were the last box of 9 mm on the local Walmart shelves, due to the Obummer run on ammo. Anyone else have a problem with these?