Awsome Thread!!! I've been looking for this exact info. I was told by a police officer once, that him and his fellow officers always load their mags to 1 less than full (12 in a 13 round mag etc.). They do this because it lowers the potential problem of a mag spring breaking. Is it common for police officers to do this? Is it common for springs to break? Thank's again, to you all, for the valuable info. Wanna kill these ads? We can help!