I just bought a Springfield Armory 45XD. It came with two clips, one 10 round, and one 13 round. I noticed this morning that the 10 round clip rattles when I put more than 7 or 8 rounds in it. It varies. I emptied the clip and reloaded several times, and every time it is fine until I get about 7 to 8 rounds in it and then it will rattle if shaken. It even rattles when it is in the firearm. The 13 round clip is fine. I have it fully loaded and it does not rattle at all. Has anyone ever seen this? Do I have a bad clip?