If the barrel is hot, the gunner may then apply water to the outside of the barrel until it is cool. The leg-locking handwheel must then be tightened, ensuring the teeth are correctly meshed. a. The 60mm mortar section is located in the weapons platoon of the rifle company, is armed with three 60mm mortars, and is (703) 614-3727, Office of the Chief Information Officer Share sensitive information only on official, secure websites. The assistant gunner checks the bipod and ensures that--. It is painted white with black markings. The sight is laid on two aiming posts (placed out 50 and 100 meters from the mortar) on a referred deflection of 2800 mils and an elevation of 1100 mils. 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 d. The first ammunition bearer stands to the right rear of the mortar. (2) Color code. (8) To help minimize the occurrence of short rounds and or duds, unpackaged ammunition that has been dropped should not be fired. a. FT 81-AI-3 Firing Tables Mortar, 81mm: M28A1 and M29 Mortar 81mm Self propelled M125A1 and M125 Carrier, 81mm Mortar Tracked XM755 [US Army.] ) or https:// means youve safely connected to the .gov website. He rotates the socket so that the open end is pointing in the direction of fire. Each round is stenciled with the ammunition lot number, type of round, type of filler, and caliber. These are NDI items . Bear in mind that these are my personal opinions, experiences, and . d. Climatic Effects. Long Range PGK. The barrel clamp, which consists of an upper and lower clamp, is situated at the top. FT 81-AI-3 Firing Tables Mortar, 81mm: M28A1 and M29 Mortar 81mm Self propelled M125A1 and M125 Carrier, 81mm Mortar Tracked XM755 SQUAD AND SECTION ORGANIZATION AND DUTIES, Each member of the infantry mortar squad has principle duties and responsibilities. (1) The rotating socket is free to move in a complete circle. (4) The M567 fuze is an impact fuze that has a SQ/IMP or D function. f. Ammunition should be stored under cover. Its range and explosive power is greater than the M224, yet it is still light enough to be man . From introduction up to halfway World War 2 the ML 3-inch had a poor range of up to 1.45 km. Additional information is included on an ammunition data card inside each container. Maximum Range (meters): 7,240 (with standard fuze) . Additionally, they carry the 81mm M252 mortar that can only be used in a dismounted capacity. b. The M252 is highly accurate up to ranges of 4500m to 5700m depending on the The cartridge is painted olive drab with yellow markings and weighs about 9.05 pounds. Mount, M177, in folded position. In addition to loading, he swabs the bore after 10 rounds have been fired or after each fire mission. Before the mortar is mounted, the squad must perform premount checks. At the command, MARCH ORDER, the squad places the mortar, equipment, and ammunition in the squad vehicle and trailer. The terms cannon and barrel are used interchangeably in this chapter. c. The assistant gunner stands to the right of the mortar, facing the barrel and ready to load. All elements given in the fire command are repeated by the squad. A .mil website belongs to an official government organization in the United States. The assistant gunner carries the bipod to the front of the barrel and places the bipod feet on the ground 12 to 15 inches in front of the baseplate and astride the line of fire. (1) The M935 fuze has two function settings: impact and delay. a. The first ammunition bearer holds the barrel until the assistant gunner has removed the mount. Complete cartridges are always handled with care. 60MM M224A1. The M252 81mm Medium Extended Range Mortar is a crew-served, medium weight mortar which is highly accurate and provides for a greater range (4,500 meters to 5,650 meters) and lethality than the . It uses the M219 propelling charge and weighs about 9.1 pounds. The safety pull wire is removed just before inserting the cartridge into the mortar. To convert the fuze from PROX to SQ/IMP, the top of the fuze must be rotated 120 degrees (one-third turn) in either direction. The gunner should expose 6 inches (150 millimeters) of elevation shaft and center the buffer carrier. e. Care, Handling, and Preservation. e. The squad leader picks up the aiming posts and sight. f. Installation. It has no safety pins or wires to reduce preparation time. The leg-locking handwheel must then be tightened by hand, ensuring the teeth on either side are correctly meshed. The removable increments are fitted onto or around the shaft, depending on their type. d. The ammunition is protected from mud, sand, dirt, and water. Mount b. a. Cartridges are shipped with a complete propelling charge, an ignition cartridge, and primer. 0.30, BROWNING, M1917A1; GUN, MACHINE: CAL. 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 . A spring-loaded locating catch is behind the elevating gear housing, which locates the plain leg in its supporting position for level ground. MFCS Mounted. The cartridge is painted olive drab with yellow markings. The 81mm mortar rounds use Red Phosphorus as the smoke generating agent. Training practice--M879, M880, M68, and sabot. He may assist the gunner in shifting the mortar when the gunner is making large deflection changes. HE ammunition is used against personnel and materiel. The cartridge uses the M218 propelling charge, which consists of four horseshoe-shaped increments fitted around the tail. It is fitted with a safety wire and pin that are removed immediately before firing. He knocks down the near aiming post and proceeds to the far aiming post. b. High explosive is used for both fragmentation and blast effect against personnel and light-skinned vehicles. Red phosphorus/white phosphorus is used for screening, producing casualties, creating incendiary effects, and signaling. At the muzzle end is a cone-shaped blast attenuator device (BAD) that is fitted to reduce noise. The lower clamp is shaped and bored on each side to house the buffer cylinders. (4) The blast attentuator device is secured correctly. He has the duty of preparing the ammunition and passing it to the assistant gunner. The company level vehicles also carry a vehicle-mounted 120mm mortar, which is augmented by the 60mm M224 mortar for dismounted use. Do not burn increments in piles but spread them in a train 1 to 2 inches deep, 4 to 6 inches wide, and as long as necessary. The cartridge is painted light green with black markings and one narrow brown band. All PD fuzes are superquick--detonate on impact. After the rounds have been removed, they should always be handled with two hands to prevent accidental dropping. The fuze threads and fuze well threads are inspected for damage. The fuzes may be used for day or night operations. The M1 became the standard American . The bipod provides front support for the barrel and carries the gears necessary to lay the mortar. (2) The M524-series fuze has two function settings: superquick/impact (SQ/IMP) and delay. 0.30, BROWNING, M1919A4, M1919A5 AND M1919A6 {TO 39A-5 AF-32} (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, MACHINE, CAL. The gunner then kicks the barrel several times with his heel in an attempt to dislodge the round. Despite its weight though, the 81mm mortar was an important part of the Table of Organization and Equipment of U.S. Army and U.S. Marine Corps maneuver battalions throughout World War II. a. High angles of approach (near vertical) give the lowest burst heights. (3) The M256-series fuze has an SQ/IMP function only. Designed by Thingsym. c. The assistant gunner disengages the barrel clamps and moves the bipod from the immediate area of the mortar position. h. Where the ground is uneven and there is no level surface for the bipod, the gunner can adjust the plain leg. e. The pull wire and safety wire are removed from the fuze just before firing. Figure 4-4. Joint Tables of Allowance; PB - Professional Bulletins; STP - Soldier Training Publications; TC - Training Circulars; . The fuze is not intended to function at charge 0. When a misfire occurs, any member of the squad immediately announces, "Misfire." Official websites use .mil The mortar squad consists of five men (Figure 4-1). a. Before-firing checks include the following: (1) Ammunition should be free of moisture, rust, and dirt. .30, BROWNING, M1919A4 AND M2 (HEAVY BARREL), .30, M2 (REPRINTED W/BASIC INCL C1) (S&I BY PROP SEE DETAILS, FOOTNOTES), GUN, MACHINE: CAL. (e) If the mask is not regular throughout the sector of fire, the gunner determines the minimum mask clearance as described above. LARGE DEFLECTION AND ELEVATION CHANGES. d. Multioption. high-explosive bomb at a range of about three miles. d. The gunner rough levels the cross-level bubble by making the bubble bounce from one side to the other. The gunner removes the sight and places it in the case with 3200 deflection and 0800 elevation indexed. It weighs about 9.05 pounds. The same procedure for aligning the far aiming post is used to align the near aiming post. He opens the cross-level handwheel, traversing handwheel, and barrel clamp. They are fuzed with the M524-series, M256-series, or M532. If the situation allows for a longer waiting period, the dud can be considered safe for handling after 40 hours. I say 120s are bad because they suffer from terrible dispersion even when not shooting at 6km. Barrel (with blast attenuator device) Cartridges assembled with the M532 fuze must be fired above charge 0. Table 4-3. The adjustment ring has six raised ribs for use in conjunction with fuze setter, M25, and a setting indicator rib (marked SET) about half the height and width of the other six ribs. He tightens the leg-locking handwheel (ensuring the teeth are correctly meshed) and fastens the securing strap over the arm and around the buffers. This may preclude moving the bipod. The adjustment ring has six raised ribs for use in conjunction with fuze setter, M25, and a setting indicator rib (marked SET) about half the height and width of the other six ribs. The cartridges are painted olive drab with yellow markings. The fuze is screwed into the cartridge body, and it is seated and secured using an M18 wrench. This round may be stored in a horizontal position. c. The M374A3 HE cartridge is constructed from pearlitic malleable cast iron and contains about 2.10 pounds of composition B explosive. Normally, it can be moved by hand, although this may be difficult to do if the mortar is moved through a large arc. Trenches are dug to prevent water from flowing under the pile. Both the 60mm and 120mm mortar rounds use White Phosphorus. Proximity (VT). It is fitted with a standard pull wire and safety pin that are removed immediately before firing. The cannon has a crew-removable breech plug and firing pin. REFER DEFLECTION TWO EIGHT SEVEN FIVE (2875), REALIGN AIMING POSTS. M252 81mm Mortars The M252 81mm medium extended range mortar (see diagram below) is a crew-served, smooth bore, muzzle loaded, high angle of fire weapon system. (The handle of the wrench is turned counterclockwise.) The cartridge can be fitted with the M524-series, M526-series, M567, or M532 fuzes. If the primer is not dented, the round may be used again. DESCRIPTION. He is also the squad driver. 60mm, 81mm, and 120mmMortar Increments. a. The standard infantry support weapon is the M-252 81mm mortar, which lobs a 10 lb. b. Upon completion of any bipod movement on the barrel, the gunner ensures that the firing pin recess is facing upward. 81 mm HE mortar projectiles generally contain anywhere between 400 g and 680 g of HE and have a maximum range of approximately 6,500 m. 82 mm HE mortar projectiles generally contain anywhere between 392 g and 680 g of HE and have maximum ranges of between 3,000 - 5,500 m. The M819 cartridge (M252 only) has a cylindrical body and contains red phosphorus that produces white smoke on contact with air. Lock REFERRING OF THE SIGHT AND REALIGNMENT OF AIMING POSTS USING M64 SIGHT. The M252 system . In addition to supervising the emplacement, laying, and firing of the mortar, he supervises all other squad activities. g. The barrel clamps can be moved along the barrel to counter large changes in elevation. The barrel clamps are then closed. The firing pin must be replaced and the bore swabbed. In any case, the gunner must ensure that the cartridge does not strike an obstacle. They are painted light green with red markings and one narrow yellow band. The mortar should be within two turns of center of traverse when the task is compete. (4) Extra increments are removed if the cartridge is to be fired with less than full charge. Illuminating is used for battlefield illumination and signaling. General Dynamics Ordnance and Tactical Systems is the leading manufacturer of propellants for 60mm, 81mm and 120mm Mortar Systems. At the same time, the first ammunition bearer moves out on the double to realign the aiming posts. 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 M374 cartridge is fitted with the M90 propelling charge. .50: BROWNING, M2 (HEAVY BARREL, FLEXIBLE) ON MOUNT, MACHINE GUN, TRIPOD MTD, CAL. After the 30-minute waiting period, the dud is still dangerous but can be approached and removed carefully or destroyed in place by qualified disposal personnel. Agreed that mortars should generally be used close to the frontline. Short cartridges can be expected when firing below charge 4. M3A1 Baseplate The following are authorized (Standard B) cartridges for the 81-mm mortar, M252: Each cartridge has fins around the tail to stabilize it in flight and to cause it to strike fuze-end first. (2) The ribs and braces have no breaks, cracks, or dents. The M751 is fitted with a smoke charge that operates on impact. The cartridges are returned to their original containers. . With the clamps facing away from him, the assistant gunner traverses the buffer carrier to the traversing handwheel and folds the handle. When the baseplate is in position, the first ammunition bearer lowers the breech plug into the rotating socket and rotates the barrel a quarter of a turn to lock it. The principal factors affecting height of burst are the angle of approach to the target and the reflectivity of the target terrain. The fuze wrench, M18, assembles the fuze to the cartridge, and the bladed tip on the end sets PD-type fuzes. The M375A3 cartridge is ballistically similar to the M374A3 (HE) cartridge. The fuze is nicely marked and is dated 1940. The aluminum tail assembly has six integral fins equally spaced around the rear, which stabilize the round in flight. The M252 81 mm medium weight mortar is a British-designed smooth bore, muzzle-loading, high-angle-of-fire weapon used for long-range indirect fire support to light infantry, air assault, and airborne units across the entire front of a battalion zone of influence. The assistant gunner attempts to maintain the traversing mechanism on a horizontal plane. Range Minimum to maximum 83 to 5,608 meters Rate of Fire . He makes large deflection shifts by shifting the bipod assembly and keeps the bubbles level during firing. The M821/M889 are 81mm HE Mortar Cartridges. If he is not within 20 mils, the gunner and assistant gunner must make another large shift before moving on. That is generally how I use mortars. The mortar is within two turns of center of traverse. News. The squad leader picks up the sight case and the two aiming posts, and moves to the exact position where the mortar is to be mounted. (3) The M84A1 fuze is a single-purpose, tungsten-ring, mechanical-time fuze used with the 81-mm M301A3 illumination cartridge. This ensures that the mortar does not fire should the round slip down the barrel during the subsequent drills. All mortar cartridges are painted to prevent rust and to identify their type. Following the arm-and-hand signals of the gunner (who is looking through the sight unit), he moves the far aiming post so that the gunner obtains an aligned sight picture. These fuzes use a clockwork mechanism to delay functioning for a specific time. Referring and realigning aiming posts ensure that all mortars are set on the same data. Theme by TechDoc. Secure .mil websites use HTTPS The M252 81mm mortar is a smooth-bore, muzzle-loaded, high-angle-of-fire weapon. They are assembled with either an M524-series, M526-series, or M567 fuze. If not, he may still fire at the desired range by selecting a charge zone having a higher elevation. The upper clamp is fitted with a locking arrangement that consists of a curved handle and a spring-loaded locking rod, which is ball-shaped at its lower end. c. The first ammunition bearer ensures that each cartridge is clean, the safety pin is present, and the ignition cartridge is in good condition. The second ammunition bearer retrieves the aiming posts. c. The first ammunition bearer checks the barrel and ensures that--. Close approach to crests, trees, towers, large buildings, parked aircraft, mechanized equipment, and similar irregularities causes functioning at heights greater than average level. Ammunition Lot Number. If the primer of the ignition cartridge is dented, the first ammunition bearer attempts to replace the safety wire and places the round in a marked, safe location for disposal by ordnance personnel. A locked padlock e. The M362A1 and M362 HE cartridges are of steel forge construction and contain about 2.10 pounds of composition B explosive. With the mortar mounted and the sight installed, the gunner lays the sight on the two aiming posts (placed out 50 and 100 meters from the mortar) on a referred deflection of 2800 mils and an elevation of 1100 mils. When a large number of cartridges are needed for a mission, they may be removed from the containers and prepared. He then checks the sight picture to ensure he is within 20 mils of a proper sight picture. News. This round must be stored in a vertical position. Baseplate placed against baseplate stake. The assistant gunner cleans the bore and swabs it dry. The section leader, acting as FDC, has one deflection instead of two or more. c. After the gunner has announced, "Up," the squad leader should check the mortar to determine if the exercise was performed correctly. High explosive--M821, M889, M374-series, and M362. The vertical cross line of the sight is on the left edge of the aiming point. . An air cavity can form on one side of a cartridge to unbalance it, causing instability in flight. (3) The securing strap is correctly located, securing the barrel clamps and buffers to the plain leg. The propellant train (except the training cartridge) consists of an ignition cartridge and propellant charges. It arms within a maximum of 2.50 seconds. For those of you in the market for a Dummy/Display 81mm mortar, I hope this article can answer a few of your questions before you order. Fired . Check the post SOP before applying the following procedure: (1) Select a place at least 100 meters from the mortar position, parked vehicles, and ammunition piles. The gunner checks the baseplate and ensures that--. He positions the lower barrel clamp against the lower stop band on the barrel and secures the upper barrel clamp. The cartridge is painted light green and has red markings and one narrow yellow band. An ammunition lot number is assigned to each ammunition lot, which is marked on each cartridge and packing container. Table 4-1. Ammunition is made and packed to withstand all conditions ordinarily encountered in the field. It has a time setting of up to 25 seconds. Powered by Hugo. The powder increments, mainly, should not be exposed to direct sunlight. Increments removed from cartridges before firing should be placed in a metal or wooden container located outside the firing vehicle/position at least 25 meters away. In charge was the platoon commander - normally a lieutenant. The squad leader stands behind the mortar where he can command and control his squad. *FREE* shipping on qualifying offers. The fuze contains a delayed arming feature that ensures the fuze remains unarmed and detonator safe for a minimum of 1.25 seconds of flight. The ignition cartridge (with primer) is fitted into the base of the fin shaft. This is accomplished by depressing the barrel until the top of the mask is clear. When fired, the cartridge carries the ignition cartridge with it, leaving the mortar ready for the next cartridge. VERY NICE condition! The body is made of aluminum and brass. Fort Belvoir, VA 22060 An M18 fuze wrench is used to change settings. I have included my order history, detailed photos, as well as my personal opinion on International Military Antiques, IMA -USA www.ima-usa.com 81mm Display Mortar that they have for sale. 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. Correct way to open an ammunition box. If you look at the table above, you'll see that at 1.5km range, 120mm mortars have nearly 33% more dispersion than 80mm mortars.Try testing 80mm mortars and 120mm mortars at 1.5km against . It is assembled with the M772A1 MTSQ. A plain leg is fitted to a stud on the elevating leg and is secured by a leg-locking handwheel. It can be fitted with either the M567, M524, or M532-series fuzes. Once set to act as an impact fuze, the mechanism cannot be reset for PROX. The M252 medium mortar offers a compromise between the light and heavy mortars. Cartridges assembled with the M524 (A1, A2, A3, or A4) fuze are for use by the US Marine Corps and US Navy only. The tabulated data of the 81-mm mortar, M252, are shown in Table 4-1. The baseplate (Figure 4-5) is of one-piece construction, and supports and aligns the mortar for firing. The tabulated data of the 81-mm mortar, M252, are shown in Table 4-1. The M375 cartridge uses the M90 propelling charge while the M375A2 and M375A1 cartridges use the M90A1 propelling charge. The gunner stands to the left side of the mortar where he can manipulate the sight, elevating handwheel, and traversing handwheel. Correctly applying and performing these duties enables the mortar section to perform as an effective fighting team. 4-10. The mount consists of elevating and traversing mechanisms and a bipod (Figure 4-4). mortar, 81-mm: m29a1 and m29; firing cartridge, he, m374a2 and m374; cartridge, wp, m375a2 and m375 (s&i by prop see details, footnotes) ardec: ft 81-al-4(abr) active: 12/24/1970: 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 . The gunner moves the mortar as the assistant gunner steadies it. Both the M90 and M90A1 propellants are in nine wax-tested, cotton cloth, bag increments assembled to the tail unit. The propelling charge is contained in four horseshoe-shaped, felt-fiber containers or nine wax-tested, cotton cloth, bag increments. This ensures a maximum traversing and elevating capability after making the movement. The Mark 4 and 5 barrels were introduced during World War 2 and have a much increased range. The gunner places the outer edge of the baseplate against the baseplate stake so that the left edge of the cutaway portion of the baseplate is aligned with the right edge of the stake (Figure 4-7). It provides illumination for about 60 seconds with 600,000 candlepower illumination. If the round does not fire, the gunner tests the barrel for heat. The cartridge weighs about 9.4 pounds. The fuze body is graduated from 0 to 25 seconds in 1-second intervals; 5-second intervals are indicated by bosses. 120mm IHE grenade DM91. TM - Technical Manuals (Range 9) TM - Technical Manuals (Range 10) TM - Technical Manuals (Range 11-4) TM - Technical Manuals (Range 11-5) . c. The gunner grasps both ends of the traverse screw assembly and supports the mortar during the subsequent drill. An official website of the United States government. It is constructed from ductile cast iron and contains about 1.5 pounds of cyclonite (RDX)/trinitrotoluene (TNT) composition explosive. d. The gunner removes the sight from its case, mounts it on the mortar, and sets a deflection of 3200 mils and an elevation of 1100 mils. Table 4-2. The cartridge is dropped down the barrel, fin-end first. This section discusses the characteristics and nomenclature of each component (Figure 4-2). d. The M374A2, M374A1, and M374 HE cartridges are painted olive drab with yellow markings and are constructed from pearlitic malleable cast iron. The 81-mm mortar, M252, is a smooth-bore, muzzle-loaded, high-angle-of-fire weapon. (3) From this train, extend a starting train that will burn against the wind of single increments laid end to end. He indicates the initial direction of fire by pointing in that direction and commands ACTION. The gunner is given an administrative command to lay the mortar on a deflection of 2860 or 2740 mils. 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 . It comes preset to function on SQ/IMP, and the selector slot should align with the SQ mark on the ogive. M120/M121 120 mm Mortar. Attached to the arm is the cross-leveling mechanism, which is attached to the clamp assembly at its upper end. This is the inert PD fuze type "IR-81" used by the Italians for their 81mm mortar rounds during WWII. Several types of HE ammunition are used in the 81-mm mortar, M252. During firing, the breech plug on the barrel is sealed and locked to the rotatable socket in the baseplate. The muzzle end has a short tapered lead-in which acts as a . Burst Height. c. Upon receiving the command REFER, REALIGN AIMING POST, two actions take place at the same time in the mortar squad. The squad leader notifies the FDC of the minimum mask clearance elevation. b. If it is necessary to leave the ammunition uncovered, it should be raised on dunnage at least 6 inches above the ground. He stands to the rear of the baseplate and supports the barrel until the bipod is fitted. The gunner is given a deflection change between 5 and 25 mils, either increasing or decreasing from the last stated deflection, and the command to refer and realign aiming posts. The M751 fuze is the only dummy fuze used with the 81-mm mortar. The fuze setter, M25, sets M84-series time fuzes. The gunner levels the elevation bubble by turning the elevation micrometer knob and reading the setting on the elevation scale and elevation micrometer--this setting is the minimum mask clearance. It contains white phosphorus that produces white smoke on contact with air. When set at delay, the fuze train causes a 0.05-second delay before functioning. He exposes 1 inch (25 millimeters) of cross-level shaft and folds the handle. The following safety checks must be enforced before firing the mortar. (4) The leg-locking handwheel is hand tight. See Chapter 3, paragraph 3-14 for a detailed discussion of malfunctions. The components of the mortar consist of a cannon, mount, and baseplate. 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, M795 PROJECTILE, HE, M795 IM PROJECTILE, HE, M1122 PROJECTILE, IR ILLUMINATING, M1123 PROJECTILE, ILLUMINATING, M1124 INCLUDES FIRING TABLES FOR PROPELLANTS: M119A2 (CHARGE 7R), M203A1 (CHARGE 8S), AND MODULAR ARTILLERY CHARGE SYSTEM (MACS) PROPELLANTS: M231 (CHARGES 1L AND 2L), M232 AND M232A1 (CHARGES 3H, 4H AND 5H) (S&I BY PROP SEE DETAILS, FOOTNOTES) . As soon as the sight data are announced, the gunner places it on the sight, lays the mortar for elevation, and traverses onto the aiming post by turning the traversing handwheel and adjusting nut in the same direction. c. The moisture-resistant seal of the container is broken when the ammunition is to be used. It can be set from 3 to 55 seconds at half-second intervals. a. No tools are needed to set the fuze, and the setting can be changed several times without damaging the fuze. Each squad member should be able to perform all the following premount checks: a. .50: AP, M2 AND CARTRIDGE, CAL. (2) Burn all dead grass or brush within 30 meters around the burning place. .50 MACHINE GUN, M3; FIRING CARTRIDGE, CAL. (3) The circlip is correctly located, securing the rotating socket to the baseplate. Their firing positions and principal duties are as follows: a. More uniform firing is obtained if ammunition is kept at the same temperature. 9301 Chapek Road., Bldg.1458 The mortar also offered the promised increase in range as well, allowing fire teams to engage the enemy at distance. 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.