1. Coming over top of cover, exposes more of your head. Also,
consider bullet bounce.
2. What works for competition is not realistic if you
are being shot at.
3. Coming out from side of cover exposes less of your
head, and illustration shows that angle of head can result in
less exposure. But you can still get SHOT!
4. Potentially, use of the Chapman Position when coming
out from the side of cover may expose less of your head because
your head is at an angle away from the source of fire (e.g., 45
degree angle vs. 90 degree angle relative to source of fire).
Body shooting position may also aid in this.
5. Don't come out at the same place - take a
"peek" and move. Example: first look high, next
low, move to another position etc... . Don't fire from
same spot. You have dimensional space: up / down; left / right;
front / back.
6. In the tests below, the initial point of bullet
impact was 3 feet in front of target. This means that the
adversary doesn't have to merely shoot you in the head directly.
Rather, his potential effective target area may be expanded to
include an area of at least 3 feet in length and as wide as the
body parts you are showing (when bullet bouncing off of hard
steel as done in the tests below).
7. Generally, don't hug cover (e.g., the wall). Of
course, there may be fact specific exceptions.
Above matters addressed in class. Above are preliminary
discussion points. Not a substitute for training