MCRP 12-10B.1, page 243

on the back wall. Because these shaped-charge rounds lack the wire wrapping of the 40-mm HEDP, they burst into few fragments and are often ineffective casualty producers. (3) Sandbagged emplacements present a different problem (Figure B-3). Because sandbags absorb much of the energy from a shaped charge, the rounds should be aimed at the center of the firing aperture. Even if the round misses the aperture, the bunker wall area near it is usually easiest to penetrate. Figure B-2. Point of Aim for a Shaped-Charge Weapon Against a Masonry Structure Figure B-3. Point of Aim for Sandbagged Emplacement (4) Light and medium recoilless weapons obtain their most effective short-range antiarmor shots by firing from upper stories or from the flanks and rear. When firing at main battle Military Operations on Urbanized Terrain B - 11