I need to know if anybody else has the same situation that I do. I bought a Bersa thunder UC9 pro. It came with 2 13 round mags. I have a couple hundred rounds through it. It shoots fine, very accurate. My question is: When I load the mags with all 13 rounds, it rattles. Not a major problem, but it annoys me. I sent a message to Bersa, with no response in almost 2 weeks, so I thought I would see if anybody else has this too. This is only with all 13 rounds loaded.