Это из пособия NRA"Quick-Fire Point Shooting. This is for engaging an enemy at less than 5 yards
and is also useful for night firing. Using a two-hand grip, the firer brings the weapon up
close to the body until it reaches chin level. He then thrusts it forward until both arms are
straight. The arms and body form a triangle, which can be aimed as a unit. In thrusting
the weapon forward, the firer can imagine that there is a box between him and the enemy,
and he is thrusting the weapon into the box.
"...the ability to keep all shots on a standard 8 1/2 inch by 11 inch sheet of paper at seven yards, hitting in the center of exposed mass, is sufficient for most defensive purposes"