MCRP 12-10B.1, page 260

The danger zone extends at an angle of about 10 degrees below the muzzle level, out to at least 100 meters, and about 17 degrees left and right of the muzzle. Figure B-11 shows the hazard area of the APDS-T round. Figure B-11. APDS-T Danger Zone (2) HEI-T. The HEI-T round penetrates urban targets by blasting away chunks of material. (a) The HEI-T round does not penetrate an urban target as well as the APDS-T, but it does strip away a greater amount of material for each round. The HEI-T does more damage to an urban target when fired in multiple short bursts because the cumulative impact of multiple rounds is greater than the sum of individual rounds. Table B-12 lists the number of HEI-T rounds needed to create different-sized holes. Target Loophole Breach Hole 3-inch brick wall at 0-degree obliquity 10 rounds 20 rounds 3-inch brick wall at 45-degree obliquity 20 rounds 25 rounds 5-inch brick wall at 0-degree obliquity 30 rounds 60 rounds B - 28 MCWP 3-35 .3