After professional training, a gunman can confirm the target, aim, and then pull the trigger in about 0.2 to 0.3 seconds.

If they shoot repeatedly, they can ignore the steps of confirming the target and aiming with large movements, and only rely on the effect of the muscle itself to complete the firing action, and the shooting time is about 0.2 seconds.

There are some very, very professional gunners who can identify the target, aim and shoot in the first step.

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