Two of the most dangerous things that can afflict a shooter: Overconfidence and underconfidence.
I don’t practice shooting as often as I’d like to, but I do practice more often than the average cop - and certainly more than the average criminal. That’s not an overconfident statement - there are no guarantees when it comes to gunfights. A gun can’t guarantee safety, but if you have one and an adequate amount of training, it’s the best way to improve your chances of survival. That improvement of chance is the best anyone can ask for. Nothing is ever guaranteed.
Yes, and ammo is a funny thing too. Using too little can get you into trouble. Use too much and well.......