57-mm Anti-tank Gun M-16-2 Technical Details
- Production years-1946-1947
- Total issued – no data available
- Caliber-57 mm
- Weight in combat position – 797 kg
- Barrel length-4175 mm
- Length of the threaded part-2853 mm
- Payment – 5 people
- Driving speed-60 km / h
- Rate of fire-10-20 rounds/min
- Maximum firing range-6556 m
- Firing angles:
- Horizontal – 58°
- Vertical – 5° +15°
- Prototype of 1946.
57-mm Anti-tank Gun M-16-2 Details
Work on improving anti-tank guns and increasing their firepower continued in the USSR throughout the Great Patriotic War and after its end. So, already in 1945, the GAU Artillery Committee sent out to all design bureaus and artillery factories tactical and technical requirements for the creation of a new 57-mm anti-tank gun, which was supposed to replace the standard ZIS-2 gun.
The main difference between the new gun was to be a smaller mass than that of the ZIS-2, while maintaining its ammunition and ballistics. According to these requirements, the Design Bureau of the Motovilikhinsky Artillery Plant No. 172 named after V. M. Molotov (Perm) in 1946 designed a 57-mm anti-tank gun, which received the factory index M-16.
The 57-mm M-16 anti-tank gun had a light two-wheeled carriage with sliding box-type frames, on which a monoblock barrel with a semi-automatic vertical bolt was mounted. A screw-on breech and muzzle brake were mounted on the barrel. The high-power muzzle brake had 20 pairs of windows on a length of 600 millimeters, which were cut at an angle of 49 degrees to the channel axis. The muzzle brake of the M 16 gun was carried out at the same time with the barrel, for the M 16-2-separately, a key was used for the connection. The muzzle brake channel in both cases had rifling, which was a continuation of the rifled part of the barrel bore. The muzzle brake absorbed about 72% of the energy. An innovation was also the carriage, which had an original lightweight design of the upper machine.
Anti-rollback devices were mounted in the cradle of a tubular section, while the cradle pipe was a hydraulic knurling cylinder, and the knurling rod served as a hydraulic brake cylinder. The anti-tank gun was equipped with a sector-type lifting mechanism, and a push-type screw rotary mechanism. The shield consisted of a 6 mm thick sheet that was mounted at a 45-degree angle, two folding upper shields and a folding lower shield. The OP1-2 telescopic sight was used as a direct-fire sight.
The wheel course consisted of standard wheels from the GAZ-A car with a GC tire and a lightweight hub. For the convenience of towing in the stowed position, an additional small-diameter roller was mounted on the left frame. The M-16 cannon had a very low line of fire height of 598 mm . The ammunition for the 57-mm gun included unitary shots to combat armored vehicles: with an armor-piercing tracer projectile, with an armor-piercing sub-caliber projectile and with a fragmentation grenade.
Field tests of the prototype M-16 gun were conducted at the Main Artillery Range in October-December 1946. Tests of the gun were discontinued due to a significant curvature of the muzzle brake, which was made with the barrel in one piece. In addition, there was insufficient strength of the legs, as well as a strong pitching of the barrel, which occurs after the shot. After testing, the prototype was finalized and soon under the M-16-2 index was submitted to the Main Artillery Range for new field tests conducted in July – September 1947 in conjunction with the 57-mm Ch-26 anti-tank gun (designed in OKBL-46 under the leadership of E. V. Charnko).
During the tests, the greatest firing range of a fragmentation shell at an angle of +15° of the M-16-2 gun was 6556 m, and the H-26 gun had a range of 6520 m . At the same time, during repeated field tests, a number of shortcomings were again revealed: insufficient strength of the upper and lower machines, unreliable operation of the bolt and trigger mechanism, unsatisfactory operation of anti-recoil devices, instability of the system during firing, etc. Soon, work on the M16-2 gun was completely stopped.
The Soviet Army adopted the M16 competitor in 1951-2 –
57-mm anti-tank gun Ch-26.