Between Sigs, Glocks, HKs, XD's, and the M&P's they will all go bang every time you pull the trigger even if they have been through a lot of abuse...heck my berretta in Iraq could do that and that is a gun whose praises I don't sing. In a gun fight the long pole in the tent will almost always be you; your level of training, your confidence in your firearm, your resolve, and your ability to get on target quickly. If a gun points perfectly for you every single time that is the gun to go with; in a caliber that you are confident in.