Maybe the most common mistake we hunters make when gun hunting is punching the trigger, rather than squeezing it. This abrupt punch, pull or yank can cause you to flinch just as you pull the trigger, resulting in a pulled shot and a missed deer. To combat this, it’s advised to slowly squeeze the trigger, resulting in a surprise when the gun goes off. This should keep you from subconsciously flinching before the shot and should result in a more accurate hit down range. Here is Wade Bourne explaining in further detail how to avoid the “Shooters Flinch”