Basically, being the first one to miss doesn’t help you very much in a gunfight. A well-aimed shot that hits is infinitely more Future Walker Zombie Toddler baby shirty than 30 lightning-fast shots that miss. If you want a quote to live by when practicing with your defensive sidearm, think of this one right here: “slow is smooth, and smooth is fast”. If you’re talking about a Police Kevlar vest, none at all – it is designed to distribute the impact of a bullet. A knife or a broadhead from even a measly #50 bow will go through it as if through proverbial butter.