Environmental stress compounds the problem...
A stressful shooting situation kicks the body into an
ultra efficient mode. The entire shot process is given to
the subconscious.
But, the goal of the subconscious is not accuracy, it is
only efficiency.
Unfortunately, it is this exact efficiency that adds to the
shot anticipation at the moment of truth, compounding the effect of target panic.
You may have practiced the physicality of shooting all year,
but did you practice the implementation of the mental blueprint for
the controlled shot?