One of the debated questions today concerns how much spare ammo you should carry.  Police often carry 2 spare magazines bringing their ammo to around 45 or 46 rounds.  Obviously most people in Law Enforcement will never have to use their pistol in the line of duty, much less discharge anywhere near that kind of round count.  So if most encounters only require a few rounds, why bother withe the extra hassle? If you carry an autoloading pistol,...