Recoilless rifles

Fig 45 57-mm CANISTER FIXED AMMUNITION T25E5 FOR RECOILLESS RIFLES 

Similar fixed rounds with combustible cartridges include 152-mm Canister XM.625 (Appendix to Ref 52, p 2-86) and 152-mm HEAT-T-MP, XM409E4 The latter round is modification of XM409E3 (Appendix to Ref 52, p 2-86.3) 

75-mm HEAT-T Fixed Ammunition for Recoilless Rifles, shown in Fig 46, consists of perforated, plastic-lined steel cartridge case crimped to high-explosive antitank 

Fig 46 75-mm HEAT-T FIXED AMMUNITION M309A1 FOR RECOILLESS RIFLES 

Fig 47 90-mm A/P CANISTER FIXED AMMUNITION XM590 FOR RECOILLESS RIFLES 

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Gun powders/propcl hints Muzzle blast Recoilless rifle blast Exploding sparks Exploding wires Laser sparks Contained explosions ... 

Ontos. Designated as the M-50, this US Marine Corps system is a full-track self-propelled direct-fire and antitank weapon. It is aimed with six 106mm recoilless rifles, one. 30cal machine gun, and four. SOcal spotting rifles. It has a top speed of 40mph and a crew of three Ref J. Quick, Dictionary of Weapons and Military Terms , McGraw-Hill, NY (1973), 334... 

Pressures, Gun. Pressures within a gun tube or barrel, a used in design practices. Because of the wide variations in size, wall ratios, heat dissipation, required safety actors, etc, design practices, vary for the different types of weapons. Some pressure terms have significance in the design of (a) all tubes and barrels, (b) cannon tubes, (c) recoilless rifle tubes, and (d) small arms, barrels, viz ... 

Fig 48a 105-mm HEAT FIXED AMMUNITION M341 FOR RECOILLESS RIFLES... 

Fig 52 PRIMER FOR IGNITING PROPELLANTS IN RECOILLESS RIFLES AMMUNITION... 

Fig 52 shows a primer-igniter for recoilless rifle ammunition... 

Here primers and igniters are separate elements and not in one piece as for igniting proplnts in gun howitzer cannons, and in recoilless rifles. The weapons known as 60-mm Mortar Cannons M2 M19 arid 81-mm Mortar Cannons Ml M29 are smooth-bore. 

This type has also been used in the following fixed and semifixed ammunition 57-mm HE, M306 Series for Recoilless Rifles (Ref 52, pp 3-5 3-6) 60-mm HE, M49 Series for Mortars (Ref 52, pp 4-4 to 4-6) ... 

The same type of projectile but without tracer was used in 57-mm HEAT, M307 for Recoilless Rifles (Ref 52, p 3-8) 90-mm HEAT, M348 for Gun Cannons (Ref 52, p 2-60) 90-mm HEAT, M348 Series for Gun Cannons (Ref 52, p 2-60) 90-mm HEAT,... 

M349 for Recoilless Rifles (Ref 52, p 3-14) 90-mm HEP-T, T142 Series for Gun Cannons... 

A different type of canister projectile is used in 90-mm Ammunition XM590 Series for Recoilless Rifle (Ref 52, p 3-17). It is shown here in Fig 47, together with its description... 

The following complete rounds of ammuni. tion for recoilless rifles are described in Ref 52 ... 

Part D, give cutaway views of typical 57, 75, 90, 105 106-mm recoilless rifle ammunition Fuzes used in recoilless rifle projectiles are listed in Section 5, Part C, item f... 

Fuze, PD M89- It is a single-action type providing super quick functioning on target impact. It arms at relatively low speeds of rotation and is intended for use in 57-mm recoilless rifle ammunition. The fuze (See Fig 1-83) is made up of either a one piece A1 body (E), or, as an alternative, of two parts.- Mechanism consists of a lightweight firing pin (D) seated in a cavity at the forward... 

Following recoilless rifle projectile fuzes are described in TM 9-1300-203 (1967) (Ref 52) ... 

Locations of some of these fuzes in recoilless rifle projectiles are shown on Figs 45, 46, 47, 48 49 in Section 3, Part D Types and calibers of projectiles used in recoilless rifles are listed in Section 4, Part B, item b)... 

British. No information is available on fuzes for projectiles used in cannons, howitzers, mortars and recoilless rifle. Fuzes used in rockets are described in confidential TM 9-1985-1(1953) (Ref 26, pp 351 to 372)... 

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