Anti-rifle Mechem NTW-20
The Mechem NTW-20 rifle has been in service with the South African national defense forces for almost 15 for years. Created at the beginning of the 90-ies of the last century, in the firm "Aerotek", by the designer T. Neofit. It is a unique sniper rifle, designed to destroy light armored vehicles and defeat at long distances manpower. Base rifle - anti-tank gun. This weapon, due to the use of modern means of armored equipment is becoming increasingly important.
The use of a rifle against lightly armored vehicles in the modern world causes a lot of controversy. The same mortar with a similar task will cope much more efficiently, and against even well-protected enemy fighters it is more efficient to use heavy machine guns. True, there is one indisputable advantage in these rifles - they are very effective in the fight against snipers. The rifle is provided with a more effective range and higher accuracy than conventional rifles that are in service or on sale.
Therefore, with the Mechem NTW-20 anti-material rifle, you can successfully resist enemy snipers, being out of reach of return fire. Another successful application is the demining of non-operational air bombs. At a safe distance, the sniper destroys the fuse, which facilitates the subsequent work of the sappers.
Mechem NTW-20 are anti-material rifle caliber 20 mm. 20x82 are used for power. This ammunition leads its history since 2MB and used to defeat tanks. The next ammunition of the caliber of 20 mm was Vulkan 20x102, Gispano 20x110, HS820 20x138. To use the latest cartridges, you need to increase the barrel length. This achieves the required muzzle velocity of a bullet. Ammunition has a greater recoil force and flash intensity than a conventional 20x82-mm cartridge, despite the fact that their useful weight is almost identical. Ammunition is presented in a large assortment, but mainly use cumulative or high-explosive ammunition. The bullet does not depend on the cartridge variant and is provided with an aluminum belt for normal passage through the barrel.
Very effective when using Mechem NTW-20, became high-explosive ordnance - when hit, it is able to destroy the enemy in the diameter of 10-meters. The effective range while 1.5 kilometer and, retaining a large penetrating force, the bullet was able to pierce the walls and explode inside shelters, premises or equipment.
But such a defeat distance is common for many rifles, and the rifle manufacturer decided to add a barrel to the rifle package for firing from it with Soviet ammunition 14.5 mm. The cartridge was not chosen by chance - it is because of its striking characteristics and armored vehicles that there is a standard for armor protection from similar ammunition at a distance of 300 meters. The cartridge is able to flash any of the existing bulletproof vests at a distance of up to 2-x kilometers, applied from the "Mechem NTW-20". In addition to the barrel for 14.5 mm, the bundle includes a barrel for 12.7 mm ammunition and Soviet-Russian and NATO ammunition can be used. The meaning of the use of ammunition 12.7 mm is available for training - it saves expensive ammunition, which is not very common in the arms market. Changing the barrel to another takes place without various special tools and will not take more than a minute in time.
The designer of Mechem NTW-20, T. Neofit, being aware of the great impact of his brainchild, made a lot of effort to reduce it. It was required that the recoil does not affect the accuracy of fire and on the very arrow. The 4 system was implemented:
- the first system is a muzzle brake of increased power, which, when fired from a rifle, attempts to push it forward under the action of jet streams of powder gases;
- the second system - hydraulic damper;
- the third system - spring-type damper;
The 2-I and 3-I systems are interconnected, the hydraulic damper first takes the recoil when the barrel moves backward, the spring damper picks up the barrel midway and begins to further reduce the recoil.
- the fourth system is a rubber butt pad, which serves as the last recoil damping system.
All the systems together really make the return of the Mechem NTW-20 a little more than the 12.7 rifle mm.
Rifle device
Mechem NTW-20 is made according to the manual-type recharge scheme with a longitudinal sliding gate. The bolt locks the barrel to six lugs. Power rifle comes from the box magazine with three ammunition capacity. In principle, you can put the cartridge in the ejection window of the ejected shell, and it will work as a single-shot rifle. The Mechem NTW-20 open sights are not provided, but have a regular 8 optical sight, which can be easily replaced. No adjustment in case of replacement is required. A special arc has been installed to carry the rifle, and it also protects the telescopic sight from damage. Bipods fold forward and are height adjustable. In addition to the front bipod, a rifle is possible with a third bipod on the butt, also folding forward. Shooting from a rifle is carried out only with the stop.
The rifle has its drawbacks. First of all, it is weight - 23-26 kilograms. However, the calculation of the rifle is two people, and in the traveling state all parts of the rifle are distributed for carrying between them in the shoulder bags. The next moment is rather large unmasking characteristics, which the arrow unmasks. But the range of use of the rifle is much longer than that of conventional rifles and, in principle, it will not be enough for the enemy to detect the shooter. And finally, due to the fact that the powder gases are sent back by the muzzle compensator, the shooter without special devices that protect the ears, can damage the hearing.
The uniqueness of the rifle is visible in everything - it has large dimensions and weight, it can use ammunition from the time of 2МВ and the most modern, you can use 25 mm grenades from modern American grenade launchers. Ammunition for a rifle is quite expensive - for example, a grenade costs about 50 dollars, and a high-explosive type ammunition costs about seven dollars.
Modern similar weapons have only one advantage over the anti-material rifle - automatic shooting. This rifle can fire only single shots; a hydraulic damper takes about 15 seconds to get ready for the next shot. The shooter will also not be able to quickly continue shooting, because after a shot from such a rifle, even with the use of protection for the ears, it will take several seconds to recover, and if it is fired at night, it will also need to be restored.
Key Features:
- length 179 centimeters;
- total weight 26 kilogram;
- centimeter barrel 100;
- effective range 20 / 14.5 mm - 1.5 / 2.3 km.
Information sources:
http://www.dogswar.ru/strelkovoe-oryjie/snaiperskie-vintovki/4800-snaiperskaia-vintovk.html
http://izhevsk.club.guns.ru/ntw20.html
http://www.youtube.com/watch?v=LHq6wi0jlnY
The use of a rifle against lightly armored vehicles in the modern world causes a lot of controversy. The same mortar with a similar task will cope much more efficiently, and against even well-protected enemy fighters it is more efficient to use heavy machine guns. True, there is one indisputable advantage in these rifles - they are very effective in the fight against snipers. The rifle is provided with a more effective range and higher accuracy than conventional rifles that are in service or on sale.
Therefore, with the Mechem NTW-20 anti-material rifle, you can successfully resist enemy snipers, being out of reach of return fire. Another successful application is the demining of non-operational air bombs. At a safe distance, the sniper destroys the fuse, which facilitates the subsequent work of the sappers.
Mechem NTW-20 are anti-material rifle caliber 20 mm. 20x82 are used for power. This ammunition leads its history since 2MB and used to defeat tanks. The next ammunition of the caliber of 20 mm was Vulkan 20x102, Gispano 20x110, HS820 20x138. To use the latest cartridges, you need to increase the barrel length. This achieves the required muzzle velocity of a bullet. Ammunition has a greater recoil force and flash intensity than a conventional 20x82-mm cartridge, despite the fact that their useful weight is almost identical. Ammunition is presented in a large assortment, but mainly use cumulative or high-explosive ammunition. The bullet does not depend on the cartridge variant and is provided with an aluminum belt for normal passage through the barrel.
Very effective when using Mechem NTW-20, became high-explosive ordnance - when hit, it is able to destroy the enemy in the diameter of 10-meters. The effective range while 1.5 kilometer and, retaining a large penetrating force, the bullet was able to pierce the walls and explode inside shelters, premises or equipment.
But such a defeat distance is common for many rifles, and the rifle manufacturer decided to add a barrel to the rifle package for firing from it with Soviet ammunition 14.5 mm. The cartridge was not chosen by chance - it is because of its striking characteristics and armored vehicles that there is a standard for armor protection from similar ammunition at a distance of 300 meters. The cartridge is able to flash any of the existing bulletproof vests at a distance of up to 2-x kilometers, applied from the "Mechem NTW-20". In addition to the barrel for 14.5 mm, the bundle includes a barrel for 12.7 mm ammunition and Soviet-Russian and NATO ammunition can be used. The meaning of the use of ammunition 12.7 mm is available for training - it saves expensive ammunition, which is not very common in the arms market. Changing the barrel to another takes place without various special tools and will not take more than a minute in time.
The designer of Mechem NTW-20, T. Neofit, being aware of the great impact of his brainchild, made a lot of effort to reduce it. It was required that the recoil does not affect the accuracy of fire and on the very arrow. The 4 system was implemented:
- the first system is a muzzle brake of increased power, which, when fired from a rifle, attempts to push it forward under the action of jet streams of powder gases;
- the second system - hydraulic damper;
- the third system - spring-type damper;
The 2-I and 3-I systems are interconnected, the hydraulic damper first takes the recoil when the barrel moves backward, the spring damper picks up the barrel midway and begins to further reduce the recoil.
- the fourth system is a rubber butt pad, which serves as the last recoil damping system.
All the systems together really make the return of the Mechem NTW-20 a little more than the 12.7 rifle mm.
Rifle device
Mechem NTW-20 is made according to the manual-type recharge scheme with a longitudinal sliding gate. The bolt locks the barrel to six lugs. Power rifle comes from the box magazine with three ammunition capacity. In principle, you can put the cartridge in the ejection window of the ejected shell, and it will work as a single-shot rifle. The Mechem NTW-20 open sights are not provided, but have a regular 8 optical sight, which can be easily replaced. No adjustment in case of replacement is required. A special arc has been installed to carry the rifle, and it also protects the telescopic sight from damage. Bipods fold forward and are height adjustable. In addition to the front bipod, a rifle is possible with a third bipod on the butt, also folding forward. Shooting from a rifle is carried out only with the stop.
The rifle has its drawbacks. First of all, it is weight - 23-26 kilograms. However, the calculation of the rifle is two people, and in the traveling state all parts of the rifle are distributed for carrying between them in the shoulder bags. The next moment is rather large unmasking characteristics, which the arrow unmasks. But the range of use of the rifle is much longer than that of conventional rifles and, in principle, it will not be enough for the enemy to detect the shooter. And finally, due to the fact that the powder gases are sent back by the muzzle compensator, the shooter without special devices that protect the ears, can damage the hearing.
The uniqueness of the rifle is visible in everything - it has large dimensions and weight, it can use ammunition from the time of 2МВ and the most modern, you can use 25 mm grenades from modern American grenade launchers. Ammunition for a rifle is quite expensive - for example, a grenade costs about 50 dollars, and a high-explosive type ammunition costs about seven dollars.
Modern similar weapons have only one advantage over the anti-material rifle - automatic shooting. This rifle can fire only single shots; a hydraulic damper takes about 15 seconds to get ready for the next shot. The shooter will also not be able to quickly continue shooting, because after a shot from such a rifle, even with the use of protection for the ears, it will take several seconds to recover, and if it is fired at night, it will also need to be restored.
Key Features:
- length 179 centimeters;
- total weight 26 kilogram;
- centimeter barrel 100;
- effective range 20 / 14.5 mm - 1.5 / 2.3 km.
Information sources:
http://www.dogswar.ru/strelkovoe-oryjie/snaiperskie-vintovki/4800-snaiperskaia-vintovk.html
http://izhevsk.club.guns.ru/ntw20.html
http://www.youtube.com/watch?v=LHq6wi0jlnY
Information