[Rick Lee]

No matter how steady you hold a gun, your breathing and flinch reflex will affect your accuracy. I was watching a noob at the range last week. He had some S&W semi-auto pistol. When his mag was empty and the slide locked back, he didn't notice. So he aimed carefully, took his time and then squeezed the trigger. You should have seen how much he flinched when the hammer didnt' drop and there was no bang. And that's why good rifles have very crisp triggers - so the bang happens as soon as possible after you squeeze. Give you less time to move and flinch.