While running an 8k over the weekend with several other cadets and a SFC. JROTC teacher, I got bored and struck up a conversation with the Sarge about his experiences behind a handgun while in Combat. We talked about how the long hours on the range, leaving his hand with calluses from shooting, didn't do as much to prepare him as he thought it would. Turns out that your shooting actually gets worse when you need it, that people never "Rise to the Occasion" like they think they will. The adrenaline going through your body makes those nice gentle trigger squeezes you do on the range into hard trigger jerks that make it all but impossible to hit what you're aiming for at any reasonable distance. It also reduces your near-ranged eyesight, increasing your far-ranged eyesight. For all of us who don't use the instinct shooting method, and instead aim down the sights, turns out we'll be crippled in combat. You can only expect to do as well in combat as your worst day on the range. There are ways, however, to change that. First, you can get a heavier gun that won't be likely to shift as much while pulling the trigger. Second, you can learn to shoot instinctively, instead of by using the sights. Lastly, you can practice so that even your worst day on the range gets every shot in the target area. Good luck and I hope that you never have to rise to the occasion.