P-385-63 Range Safety Pamphlet Download

Table 4–8 Surface danger zone data for 5.56mm M855A1 enhanced performance round (ball)—Continued Altitude Impact Distance Distance Distance Area Area Angle Angle Ricochet vertical (ft) media X 1 Y W A 2 B P 3 Q hazard (m) (m) (m) (m) (m) (deg) (deg) (m) 6,000 Earth Armor 4,234 4,234 3,700 3,650 470 440 100 100 NR NR 60 45 15 14 354 324 7,000 Earth Armor 4,369 4,369 3,800 3,750 490 450 100 100 NR NR 60 45 15 14 365 333 Legend for Table 4-8: NR=not required Notes: 1 Distance X must increase by 29m per m/sec or 15m per knot of tail wind, measured along the line of fire. 2 Area A applies to cone SDZ only. 3 Ricochet Angle P is measured from the dispersion angle. To correct for cross-range winds, the dispersion angle must increase by 0.4 degrees per m/s or 0.2 degrees/knot of cross wind, measured perpendicular to the line of fire. m. Table 4–9 contains SDZ data for 5.56mm Cartridge, M856A1 Tracer. Table 4–9 Surface danger zone data for 5.56mm Cartridge, M856A1 Tracer Altitude (ft) Impact media Distance X 1 (m) Distance Y (m) Distance W (m) Angle P 2 (deg) Angle Q (deg) Ricochet vertical hazard (m) 0 Earth 2,574 1,625 190 58.00 19.00 162 Armor 2,574 1,900 210 48.00 15.00 171 1,000 Earth 2,657 1,679 197 58.30 19.15 166 Armor 2,657 1,958 217 48.15 15.15 177 2,000 Earth 2,742 1,733 204 58.60 19.30 171 Armor 2,742 2,016 224 48.30 15.30 183 3,000 Earth 2,831 1,787 211 58.90 19.45 177 Armor 2,831 2,074 231 48.45 15.45 188 4,000 Earth 2,924 1,841 218 59.20 19.60 182 Armor 2,924 2,132 238 48.60 15.60 194 5,000 Earth 3,020 1,895 225 59.50 19.75 189 Armor 3,020 2,190 245 48.75 15.75 201 6,000 Earth 3,120 1,949 232 59.80 19.90 195 Armor 3,120 2,248 252 48.90 15.90 207 7,000 Earth 3,224 2,003 239 60.10 20.05 201 Armor 3,224 2,306 259 49.05 16.05 214 Notes: 1 Distance X is for firing elevations up to maximum range and considers both free flight and ricochet trajectories. To correct for tail winds, Distance X must increase by 25m per m/s or 13m per knot of tail wind measured along the line of fire. 2 Angle P is measured from the dispersion angle. To correct for cross range winds, the dispersion angle must increase by 0.45 degree per m/s or 0.23 de- gree per knot of cross range wind measured perpendicular to the line of fire. n. Table 4–10 contains SDZ data for 5.56mm Cartridge, MK301 Dim Tracer. 37 DA PAM 385–63 • 16 April 2014