Dick has it right... Practicing at close range, "from the hip" as it
were. We used to practice, aiming by feel, not by eye. Prone,
sitting...
from the side...
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Military laser target designation systems are totally different.
They are closed loop with an optical detector providing control of
where the round goes. One person or system "illuminates" the target
with a laser. A detector receives the reflected laser spot and
controls the weapon and round to be fired. As long as the target
remains illuminated with the laser, the round doesn't miss.