HE ammunition is used against personnel and materiel. This ensures a maximum traversing and elevating capability after making the movement. Red phosphorus cartridges (M252 only) are stored the same as HE cartridges. The M821A2/821A1/889A1 consists of the following major components: M935 Point Detonating Fuze or M734/734A1 Multi-Option Fuze. 81-mm MORTAR, M252 The 81-mm mortar, M252, delivers timely, accurate fires to meet the . The M252 81mm mortar is a smooth-bore, muzzle-loaded, high-angle-of-fire weapon. The M374A2 and M374A1 cartridges are fitted with the M90A1 propelling charge. The company level vehicles also carry a vehicle-mounted 120mm mortar, which is augmented by the 60mm M224 mortar for dismounted use. The RSTA squadron only receives the 120mm mounted mortar, there is no augmentation dismounted maneuvers. The 0-second boss is wider and differs in shape from the other body bosses; the safe setting position is indicated by the letter "S" on the fuze body. M327 mortar is an extended range mortar system operated by Marine Corps Artillery Units. The same procedure for aligning the far aiming post is used to align the near aiming post. At extreme temperatures (below -40 degrees Fahrenheit and above 125 degrees Fahrenheit), it is not unusual to experience an increase in malfunctions proportionate to the severity of conditions. 251 MK 1 AND CARTRIDGE, AP-T, M81 AND M81A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 57-MM, M18, M18A1 AND T15E16; FIRING CARTRIDGE, HE, M306A1 AND CARTRIDGE, TP, M306A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 57-MM, M18, M18A1 AND T15E16, FIRING CARTRIDGE, HE, AT, M307A1, MUZZLE/VELOCITY, 1200 F/S (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60MM, M224 FIRING CARTRIDGE, HE, M720 CARTRIDGE, HE, M720A1 CARTRIDGE, HE, M49A4 CARTRIDGE, HE, M888 CARTRIDGE, HE, M768 CARTRIDGE, HE, XM1046 CARTRIDGE, HE, M1061 CARTRIDGE, WP, M50A3 CARTRIDGE, WP, M302A2 AND M302A1 CARTRIDGE, WP, M722 CARTRIDGE, WP, M722A1 CARTRIDGE, ILLUM, M83A3 CARTRIDGE, ILLUM, M721 CARTRIDGE, IR, M767 CARTRIDGE, FRPC, M769 CARTRIDGE, TP (SR), M766 (S&I BY PROP SEE DETAILS, FOOTNOTES) (REPRINTED W/BASIC INCL C1), FIRING TABLES FOR MORTAR, 60MM: M224 MORTAR, 60MM: M224A1 FIRING CARTRIDGE, HE, M720A1 CARTRIDGE, HE, M768 CARTRIDGE, HE, M720 CARTRIDGE, HE, M720A2 CARTRIDGE, HE, M768A1 CARTRIDGE, WP, M722 CARTRIDGE, WP, M722A1 CARTRIDGE, HE, M888 CARTRIDGE, HE, M49A4 CARTRIDGE, TP, M50A3 CARTRIDGE, HE, M1061 CARTRIDGE, HE, XM1046 CARTRIDGE, WP, M302A1 CARTRIDGE, WP, M302A2 CARTRIDGE, ILLUM, M721 CARTRIDGE, ILLUM, M83A3 CARTRIDGE, IR ILLUM, M767 CARTRIDGE, TP(SR), M766 CARTRIDGE, FRPC, M769 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60-MM, M224; FIRING CARTRIDGE, HE, M888 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60MM, M224, FIRING CARTRIDGE, HE, M888 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 60 MM, M224 FIRING CARTRIDGE, HE M488 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE: 75-MM, M20 (T25); FIRING CARTRIDGE, PHE, M310 AND M310A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 76-MM, M32 ON TANKS, 75-MM GUN, M41 AND M41A1 AND GUN, 76-MM, M48 (T124E2) ON CARRIAGE, 76-MM, M29 (T66) FIRING SHOT, AP-T, M339 SHOT, TP-T, M340 SHOT, HVAPDS-T, M331A1 AND M331A2 SHOT, HVAP, T66E4 SHELL, HE, M352 SHELL, WP, M361 (T140E2) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1, M29 AND M1; FIRING CARTRIDGE, HE, M362 CARTRIDGE, HE, M43A1 AND TP, M43A1 CARTRIDGE, WP, M57 AND M57A1 CARTRIDGE, ILLUMINATING, M301A1 AND M301A2 CARTRIDGE, ILLUMINATING, M301A3 (REPRINTED W/BASIC INCL C1-7) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR 81-MM: M29 AND M2 FIRING CARTRIDGE, HE, M43A1 WITH FUZE, PD, M525 FUZE, PD, M52A2E3 (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR: 81-MM, M29 AND M1 ON MOUNTS, MORTAR: 81-MM, M23A2, M23A1, M23, M4 AND M1; FIRING SHELL, HE: M43A1 AND M43A1B1; SHELL, TP: M43A1 AND M43A1B1 WITH FUZE, PD: M52B10; FIN, M3; CARTRIDGE, IGNITION: M8; PRIMER, PERCUSSION: M34 AND INCREMENT, PROPELLANT: M1A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29; MORTAR, 81-MM, SELF-PROPELLED: M125A1 AND M125; CARRIER, 81-MM MORTAR: TRACKED, XM755; FIRING CARTRIDGE, HE: M374A2 AND M374; CARTRIDGE, WP, M375A2 AND M375; CARTRIDGE, ILLUMINATING: M301A3; CARTRIDGE, TRAINING: M68 AND TRAINING DEVICE, M1 (REPRINTED W/BASIC INCL C1-4) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29; FIRING CARTRIDGE, HE, M374A2 AND M374; CARTRIDGE, WP, M375A2 AND M375 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 81MM, M29 AND M1 FIRING CARTRIDGE, ILLUMINATING, M301A3 WITH FUZE, TIME, M84A1, HEIGHT OF BURST, 600 METERS (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM, M29A1 AND M1; FIRING CARTRIDGE, ILLUMINATING, M301A2 WITH FUZE, TIME: M84A1 HEIGHT OF BURST, 381 METERS (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29; FIRING TRAINING DEVICE, 81-MM: M1 SABOT WITH CARTRIDGE, TP, M744 (CHARGE 1); CARTRIDGE, TP, M745 (CHARGE 2); CARTRIDGE, TP, M746 (CHARGE 3), CARTRIDGE, TP, M747 (CHARGE 4) (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM: M29A1 AND M29 AND FIRING CARTRIDGE, HE: M374A3 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE FOR MORTAR, 81-MM: M29A1 AND M29; MORTAR, 81-MM, SELF-PROPELLED: M125A1 AND M125; CARRIER, 81-MM MORTAR: TRACKED, M755 M755 AND FIRING CARTRIDGE, HE, M374A3 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 81MM, M252, M252A1, AND M252A2 FIRING CARTRIDGE, HE, M821; CARTRIDGE, HE M889; CARTRIDGE, RP, M819; CARTRIDGE, ILLUMINATING, M853A1; CARTRIDGE, TP, M879; CARTRIDGE, TP, M879A1; CARTRIDGE, HE, M821A1; CARTRIDGE, HE, M821A2; CARTRIDGE, HE, M821A3; CARTRIDGE, HE, M821A4; CARTRIDGE, HE, M889A1; CARTRIDGE, HE, M889A2; CARTRIDGE, HE, M889A3 (PROV); CARTRIDGE, HE, M889A4; AND CARTRIDGE, IR ILLUMINATING, M816; AND MORTAR, 81MM, M29A1 AND MORTAR, 81MM, M252, M252A1, AND M252A2 FIRING CARTRIDGE, TP (SR), M880 (S&I BY PROP SEE DETAILS, FOOTNOTES), MORTAR, 81-MM, M29A1, M29, AND M1; FIRING CARTRIDGE, TRAINING, M68 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 90-MM: M67 AND FIRING CARTRIDGE, HEAT, M371 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 105MM GUN, M68 AND M68A1 ON TANK, COMBAT, FULL TRACKED: 105MM GUN, M1, M60A3, M60A1, M60 AND M48A5; FIRING CARTRIDGE, APFSDS-T, M900; CARTRIDGE, APFSDS-T, M833; CARTRIDGE, APFSDS-T, M774; CARTRIDGE, APFSDS-T, M735; CARTRIDGE, APDST, M728; CARTRIDGE, APDST-T, M392A2, M392A1, AND L36A1; CARTRIDGE, HEAT-T-MP, M456A2; CARTRIDGE, HEAT-T, M456A1 AND M456; CARTRIDGE, HEP-T, M393A2 AND TP-T, M393A1; CARTRIDGE, WP-T, M416; CARTRIDGE, APERS-T, M494; CARTRIDGE, TPDS-T, M724; CARTRIDGE, TP-T, M490A1; CARTRIDGE, TP-T, M490 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 105-H-6 FOR CARTRIDGE, HE, M444 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 105-AS-2 FOR CARTRIDGE, HE, M444 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 105-AS-4 FOR CARTRIDGE, HE, DPICM, M915 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M137A1 (M137E1) AND M137 ON HOWITZER, LIGHT, TOWED, 105MM, M102 AND CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A1 FIRING CARTRIDGE, HE, M1 CARTRIDGE, GAS, PERSISTENT, H AND HD, M60 CARTRIDGE, GAS, NONPERSISTENT, GB, M360 CARTRIDGE, SMOKE, WP, M60, M60A1 AND M60A2 CARTRIDGE, SMOKE, HC AND COLORED, BE, M84A1 CARTRIDGE, ILLUMINATING, M314A3 CARTRIDGE, HEP-T, M327 CARTRIDGE, ANTIPERSONNEL, M546 CARTRIDGE, HEAT-T, M622 CARTRIDGE, HE, M760 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M137 AND M137A1 ON HOWITZER, LIGHT, TOWED, 105MM, M102 AND CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A3 FIRING CARTRIDGE, HERA, M548 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A1 FIRING CARTRIDGE, HERA, M913 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 105MM HOWITZER, M137 AND M137A1 ON HOWITZER, LIGHT, TOWED, 105MM, M102 AND CANNON, 105MM HOWITZER, M20A1 ON HOWITZER, LIGHT, TOWED, 105MM, M119A3 FIRING CARTRIDGE, HERA, M927 (S&I BY PROP SEE DETAILS, FOOTNOTES)-, CANNON, 105-MM HOWITZER: M2A2 AND M2A1 ON HOWITZER, LIGHT, TOWED: 105-MM, M101A1 AND M101 AND CANNON, 105-MM HOWITZER: M49 ON HOWITZER, LIGHT, SELF-PROPELLED, FULL-TRACKED, 105-MM: M52A1 AND M52; FIRING CARTRIDGE, HE: M1; CARTRIDGE, GAS PERSISTENT, H AND HD, M60; CARTRIDGE, GAS, NONPERSISTENT, GB, M360; CARTRIDGE, SMOKE, WP, M60; CARTRIDGE, SMOKE, BE, M84 AND M84B1 (HC AND COLORED); CARTRIDGE,SMOKE, HC, BE, M84A1 (M84E1); CARTRIDGE, ILLUMINATING, M314A3 (M314A2E1); CARTRIDGE, HEP-T, M327; CARTRIDGE, ANTIPERSONNEL, XM546 AND CARTRIDGE, HEAT-T, M622 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, RECOILLESS, 106MM, M40, FIRING, SHELL, HEAT, M344 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 106-MM RECOILLESS RIFLE, M40A1 ON MOUNT, M79; FIRING CARTRIDGE, 106-MM: HEAT, M344 (S&I BY PROP SEE DETAILS, FOOTNOTES), RIFLE, 106-MM, M40 FIRING CARTRIDGE, HEP-T, M346 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 106-MM RECOILLESS RIFLE, M40A4 AND M40A2 ON MOUNT, M79; FIRING CARTRIDGE, ANTIPERSONNEL, XM581 WITH FUZE, MT, XM592E1 AND CARTRIDGE, ANTIPERSONNEL, M581 WITH FUZE, MT, M592 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 120MM GUN, M256 ON TANK, COMBAT, FULL TRACKED: 120MM GUN, M1A1 FIRING CARTRIDGE, APFSDS-T, M829 CARTRIDGE, APFSDS-T, M829A1 CARTRIDGE, APFSDS-T, M829A2 CARTRIDGE, APFSDS-T, M827 CARTRIDGE, APFSDS-T, DM13 CARTRIDGE, HEAT-MP-T, M830 CARTRIDGE, HEAT-MP-T, M830A1 CARTRIDGE, HEAT-MP-T, DM12 CARTRIDGE, TPCSDS-T, M865 CARTRIDGE, TPCSDS-T, M865 PIP CARTRIDGE, TPFSDS-T, M866 CARTRIDGE, TPFSDS-T, DM28 CARTRIDGE, HEAT-TP-T, M831 CARTRIDGE, TP-T, M831A1 CARTRIDGE, HEAT-TP-T, DM18 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 120MM: CARRIER-MOUNTED M121 MARTAR, 120MM: TOWED M120 FIRING CARTRIDGE, HE, M934 CARTRIDGE, HE, M934A1 CARTRIDGE, HE, M933 CARTRIDGE, WP, XM929 CARTRIDGE, WP, M929 CARTRIDGE, ILLUM, XM930 CARTRIDGE, IR ILLUM, XM983 CARTRIDGE, FRPC, M931 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 120MM: CARRIER-MOUNTED RMS6L (BCT STRYKER) FIRING CARTRIDGE, HE, M934 CARTRIDGE, HE, M933 CARTRIDGE, HE, M934A1 CARTRIDGE, WP, XM929 CARTRIDGE, WP, M929 CARTRIDGE, ILLUM, M930 CARTRIDGE, ILLUM, M930E1 CARTRIDGE, IR ILLUM, M983 CARTRIDGE, FRPC, M931 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MORTAR, 120MM: TOWED M327 FIRING PROJECTILES, HE, M1101 PROJECTILES, SMOKE, WP, M1103 PROJECTILES, ILLUMINATING, M1105 PROJECTILES, PRACTICE, M1107 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 152-MM GUN LAUNCHER: M81E1 AND M81 ON ARMORED RECONNAISSANCE/AIRBORNE ASSAULT VEHICLE: FULL TRACKED, 152-MM, M551; FIRING CARTRIDGE, 152-MM: HEAT-MPT, XM409E5; CARTRIDGE, 152-MM: TP-T, XM411E4 AND XM411E3; CARTRIDGE, 152-MM: HE-T, XM657E2; CARTRIDGE, 152-MM: CANISTER, XM625 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 152-MM GUN-LAUNCHER: M162 ON TANK, COMBAT, FULL-TRACKED: 152-MM, M60A2; FIRING CARTRIDGE, 152-MM: HEAT-T-MP, M409; CARTRIDGES, 152-MM: TP-T, M411A1 AND M411 AND CARTRIDGE, 152-MM CANISTER, M625 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AR-2 FOR PROJECTILE, SMOKE, M825 AND PROJECTILE, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AK-2 FOR PROJECTILE, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILES, HE, M449A1 (M449E2) PROJECTILES, HE, M449 (T379) PROJECTILES, HE, M449E1 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 155-AN-1 FOR PROJECTILE, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 144-ADD-K-1 FOR HOWITZER, ORGANIZATIONAL, MEDIUM, SELF-PROPELLED, 155-MM, M109, M109A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-1 FOR PROJECTILE, HE, M692 AND PROJECTILE, HE, M731 (REPRINTED W/BASIC INCL C1-2) (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, HE, M692 PROJECTILES, HE, M731 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AK-2 FOR PROJECTILE, HE, M692; PROJECTILE, HE, M731 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-1 FOR PROJECTILE, ANTITANK, M718 AND M741 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, ANTITANK, M718 AND M718A1 PROJECTILES, ANTITANK, M741 AND M741A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AK-2 FOR PROJECTILE, ANTITANK, M718 AND M741 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AN-2 FOR PROJECTILES, SMOKE, M825 AND PROJECTILES, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILE, HE, M483A1 USING REGISTRATION DATA FOR PROJECTILE, HE, M107 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILES, HE, M483A1 USING REGISTRATION DATA FOR PROJECTILES, HE, M107 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 155-AM-3 FOR PROJECTILE, HE, M483A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLE ADDENDUM TO FT 155-AM-2 FOR PROJECTILES, SMOKE, M825 AND PROJECTILES, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 155-AM-3 FOR PROJECTILE, SMOKE, M825 AND PROJECTILE, SMOKE, M825A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), PROVISIONAL AIMING DATA ADDENDUM TO FT 155-ADD-AU-PAD FOR PROJECTILE, HE, M864 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 155-MM HOWITZER, M126A1 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155-MM, M109 AND CANNON, 150MM HOWITZER, M1A2 ON HOWITZER, MEDIUM, TOWED, 150MM, M114A2 FIRING PROJECTILE, HE, M483A1 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 155MM HOWITZER, M185 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1 HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1B HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A2 AND HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3 AND CANNON, 155MM, HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 FIRING PROJECTILE, HE, M107 PROJECTILE, SMOKE, WP, M110, PROJECTILE, SMOKE, BE, M116, M116B1 (HC AND COLORED) PROJECTILE, SMOKE, BE, M116A1, (HC) PROJECTILE, GAS, PERSISTENT, H AND HD, M110 PROJECTILE, GAS, NONPERSISTENT, GB, M121A1 PROJECTILE, GAS PERSISTENT, VX, M121A1 PROJECTILE, ILLUMINATING, M485A2 AND M485A1 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 155MM HOWITZER, M185 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1; HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A1B; HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A2; HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3; HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A3B; HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A4 AND CANNON, 155MM HOWITZER, M284 ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A5, M109A6 AND M109A7 AND CANNON, 155MM HOWITZER, M284A2 CHROME ON HOWITZER, MEDIUM, SELF-PROPELLED, 155MM, M109A6 AND M109A7 AND CANNON, 155MM HOWITZER, M199 ON HOWITZER, MEDIUM, TOWED, 155MM, M198 AND CANNON, 155MM HOWITZER, M776 ON HOWITZER, MEDIUM, TOWED, 155MM, M777, M777A1 AND M777A2 AND CANNON, 155MM HOWITZER, M776 CHROME ON HOWITZER, MEDIUM, TOWED, 155MM, M777A2 FIRING PROJECTILE, HE, M107; PROJECTILE, SMOKE, WP, M110, M110A1 AND M110A2; PROJECTILE, SMOKE, BE, M116A1 (HC); PROJECTILE, ILLUMINATING, M485A2 AND M485A1; AND PROJECTILE, IR ILLUMINATING, M1066 (S&I BY PROPONENT, SEE FOOTNOTES. Dropping may cause the propellant charges to ignite, causing bodily injuries. (2) Color code. He tightens the leg-locking handwheel (ensuring the teeth are correctly meshed) and fastens the securing strap over the arm and around the buffers. The M301A3 cartridge has a cylindrical body that contains an illuminating candle and parachute assembly. The mortar is then re-laid on the aiming posts using the traversing crank. He exposes 4 inches (100 millimeters) of elevation shaft and folds the handle. This round may be stored in a horizontal position. He is also the squad driver. (a) Since the mortar is normally mounted in defilade, there could be a mask such as a hill, tree, building, or rise in the ground. Mortars are indirect-fire weapon systems. Placing the mortar in position at night does not relieve the gunner of the responsibility of checking for mask clearance and overhead interference. After the mortar is mounted, the gunner makes a thorough check. f. If the above procedure fails to remove the misfire, the barrel must be kept horizontal. Before the mortar is mounted, the squad must perform premount checks. Army Publishing Directorate (6) The primer cartridge is checked for damage or dampness. (3) The circlip is correctly located, securing the rotating socket to the baseplate. After the barrel cools, the gunner removes the sight and firing pin. 4-11. The types of fuzes described in this paragraph are point detonating, proximity, mechanical time, multioption, and dummy. Baseplate placed against baseplate stake. He exposes 1 inch (25 millimeters) of cross-level shaft and folds the handle. Tabulated data. The M734 multioption fuze is the only one used with the 81-mm mortar. c. The gunner grasps both ends of the traverse screw assembly and supports the mortar during the subsequent drill. Figure 4-4. MORTAR RANGE: 500M X 100M X: FIELD TRAINING AREA 40000 Sq Ft: X STORAGE BUILDING, GENERAL PURPOSE, INSTALLATION: Area to store excess equipment X: ORGANIZATIONAL STORAGE BUILDING Arms room for Mortar equipment: X . The M1 became the standard American . d. Multioption. I say 120s are bad because they suffer from terrible dispersion even when not shooting at 6km. Once set to act as an impact fuze, the mechanism cannot be reset for PROX. However, at temperatures above 32 degrees Fahrenheit and at angles greater than 1068 mils, the flight time is sufficient to permit arming. He ensures that the firing pin recess is facing upwards. (2) The breech plug is screwed tightly to the barrel. The mortar is within two turns of center of traverse. It is light enough to be portable when broken down into. Mount, M177, in folded position. If the line of sight clears the mask, it is safe to fire. The muzzle end has a short tapered lead-in which acts as a . The floating firing pin located within the primer has approximately 1/16 of an inch to move around. They function normally in light rain; however, heavy rain, sleet, or snow can cause an increase in the number of early bursts. .50: BALL, M2 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR WEAPON, 5.56MM, M16A1 WEAPON, 5.56MM, M16A2 WEAPON, 5.56MM, M249 AND WEAPON, 5.56MM, M4 FIRING CARTRIDGE, BALL, M855 CARTRIDGE, TRACER, M858 CARTRIDGE, BALL, M193 CARTRIDGE, TRACER, M196 (S&I BY PROP SEE DETAILS, FOOTNOTES), MACHINE GUN, 7.62-MM: M60 ON MOUNT, MACHINE GUN: 7.62-MM, M122 AND MACHINE GUN, 7.62-MM: M73 ON TANK, COMBAT, FULL-TRACKED: 105-MM GUN, M60 SERIES AND RIFLE, 7.62-MM: M14; FIRING CARTRIDGE, 7.62-MM, BALL, NATO, M59; CARTRIDGE, 7.62-MM, BALL, NATO, M80; CARTRIDGE, 7.62-MM: AP, NATO, M61 AND CARTRIDGE, 7.62-MM: TRACER, NATO, M62 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 8-Q-1 FOR PROJECTILE, HE, M404 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 8-J-4 FOR PROJECTILE, HE, M404 (S&I BY PROP SEE DETAILS, FOOTNOTES), ADDENDUM TO FT 8-T-1 FOR PROJECTILE, HE: M509A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER, M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED, 8-INCH, M110A2 FOR LOW ANGLE FIRING PROJECTILE, HE, M509A1 USING REGISTRATION DATA FOR PROJECTILE, HE, M106 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER: M2 AND M2A1 ON HOWITZER, HEAVY, TOWED: 8-INCH, M115; CANNON, 8-INCH HOWITZER: M47 ON HOWITZER, HEAVY, SELF-PROPELLED, FULL TRACKED: 8-INCH, M55; CANNON, 8-INCH HOWITZER: M2A1E1 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110; FIRING PROJECTILE, HE: M106 AND PROJECTILE, CHEMICAL: M426 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER, M201 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110A1 AND CANNON, 8-INCH HOWITZER, M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110A2 AND FIRING PROJECTILE, HE, M106 PROJECTILE, CHEMICAL, M426 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER: M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED, 8-INCH, M110A2; FIRING PROJECTILE, HE, RA; M650 AND PROJECTILE, ATOMIC: M753 AND M753A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 8-INCH HOWITZER, M201A1 ON HOWITZER, HEAVY, SELF-PROPELLED: 8-INCH, M110A2 FIRING PROJECTILE, HE, M509A1 (S&I BY PROP SEE DETAILS, FOOTNOTES), CANNON, 14.5-MM GUN, M31; ARTILLERY TRAINER FIRING FUZED CARTRIDGES, M181, M182 AND M183 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, 20-MM, AUTOMATIC, M139; FIRING CARTRIDGE, 20-MM, HEIT, M599; CARTRIDGE, 20-MM, TPT, M206 AND CARTRIDGE, 20-MM, APIT, M601 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR CANNON, 25MM GUN, M242 ON INFANTRY FIGHTING VEHICLE, M3 FIRING CARTRIDGE, APDS-T, M791 CARTRIDGE, HEI-T, M792 CARTRIDGE, TP-T, M793 CARTRIDGE, TPDS-T, M910 (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, AUTOMATIC, 40-MM, M1 AND GUN, DUAL AUTOMATIC, 40-MM, M2; FIRING CARTRIDGE, HE-T, SD, MK 2 WITH FUZES, PD, MK 27, M64A1, M71 OR NO. Tabular Firing Tables TFT ORDER FORM 1.Select "Mortar" 2.Select which mortar caliber 3.Select mortar system nomenclature 4.Select which TFTs to order 5.Put in quantity and click "Add TFTs" 6.Click "Next" TFT JUSTIFICATION 1.Put in TFT Ordering Justification 2.Click "Next" SHIPPING INFORMATION 1.Fill out all required fields The Mark 4 and 5 barrels were introduced during World War 2 and have a much increased range. e. The assistant gunner passes the round to the first ammunition bearer who inspects it for the cause of the misfire. The gunner stands to the left side of the mortar where he can manipulate the sight, elevating handwheel, and traversing handwheel. The gunner unlocks the barrel clamp and rotates the barrel, unlocking the breech plug from the rotating socket of the baseplate. (1) Mask clearance and overhead clearance are sufficient. The M252 81mm medium extended range mortar (see diagram below) is a crew-served, smooth bore, muzzle loaded, high angle of fire weapon system. At the same time, the first ammunition bearer moves out on the double to realign the aiming posts. The superior flow characteristics of these BALL POWDER . c. The assistant gunner lifts the bipod and stands it on its elevating leg so that the elevating handwheel is to the rear and the plain leg is to the front. (2) The M524-series fuze has two function settings: superquick/impact (SQ/IMP) and delay. The squad leader points to the exact spot where the mortar is to be mounted. It has a time setting of up to 50 seconds. Table 4-1. (3) The M84A1 fuze is a single-purpose, tungsten-ring, mechanical-time fuze used with the 81-mm M301A3 illumination cartridge. a. (8) To help minimize the occurrence of short rounds and or duds, unpackaged ammunition that has been dropped should not be fired. A spring-loaded locating catch is behind the elevating gear housing, which locates the plain leg in its supporting position for level ground. WP cartridges are stored with the fuze end up. Illuminating is used for battlefield illumination and signaling. 0.50, M8 (REPRINTED W/BASIC INCL C1-2) (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MACHINE GUN, CALIBER .50: BROWNING, M2 (HEAVY BARREL, TURRET TYPE) ON MOUNT, MACHINE GUN, TRAILER MOUNTED: MULTIPLE CALIBER .50 MACHINE GUN, M55 FIRING CARTRIDGE, CALIBER .50: API, M8 (S&I BY PROP SEE DETAILS, FOOTNOTES), FIRING TABLES FOR MACHINE GUN, CALIBER .50: FICED, M85 TANK, COMBAT, FULL TRACKED: 105MM GUN, M60 SERIES FIRING CARTRIDGE, CALIBER .50: API, M8 CARTRIDGE, CALIBER .50: API-T M20 CARTRIDGE, CALIBER .50: BALL, M33 CARTRIDGE, CALIBER .50: TRACER, M17 (S&I BY PROP SEE DETAILS, FOOTNOTES), MACHINE GUN, CAL. Upon completion of any bipod movement on the barrel, the gunner ensures that the firing pin recess is facing upward. No tools are needed to set the fuze, and the setting can be changed several times without damaging the fuze. The gunner moves the mortar as the assistant gunner steadies it. The first ammunition bearer shakes the barrel to dislodge any remnants from the last round fired, and he lowers the barrel into the rotating socket of the baseplate. Official websites use .mil This action breaks an internal sheet pin and internal wire, thereby disabling the proximity function. d. The M374A2, M374A1, and M374 HE cartridges are painted olive drab with yellow markings and are constructed from pearlitic malleable cast iron. (3) From this train, extend a starting train that will burn against the wind of single increments laid end to end. (2) The fin and fuze assembly must be checked for tightness and damage. The barrel is then rotated a quarter turn to unlock it from the socket, and it is placed in an area designated by the squad leader. (The handle of the wrench is turned counterclockwise.) The term "danger close" is included in the call for fire when there are friendly troops or positions within a prescribed distance of the target, specifically 600 meters for artillery or mortars .
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