Belgian caliber cartridge 5,7 × 28 mm – pistol cartridge

In ammunition, today we will focus on the Belgian caliber cartridge 5,7 × 28 mm – pistol cartridge, created in 1986 to replace an already widespread cartridge 9 × 19 mm Parabellum NATO standard, although it bears little resemblance to the cartridge pistol. It is a compact cartridge with a pointed bullet and sleeve bottle-shaped, which, according to developers, has been obtained by replacing bullets and cartridge cases shortening 5.56 NATO. This round took place between intermediaries submachine pistol and ammunition. Compared with the chuck 9 × 19 mm, it provides a greater flatness of fire, smaller returns, greater effective range (the maximum range of a bullet – 1510 m and the maximum uboynaya- 825 meters, but because of the light bullets killing power of the cartridge falls rapidly at a distance of 600 m), armor piercing (with an initial velocity of 650 to 720 depending on the length of the barrel at a distance of 50 meters the bullet pierces the standard chuck 48 layers of Kevlar, and at a distance of 150-200 meters steel helmet or body armor standard set by NATO requirements CRISAT), as well as different degrees of reduced ricocheting. The main characteristic of the cartridge is enormous penetrating ability, which is an advantage compared with other pistol cartridge. Properties ballistics are that when released into the soft tissue, the bullet makes a turn of 360 degrees, and then continues its movement, stopping after 10 – 15 cm . This feature eliminates the departure bullet right through the human body, reducing the number of random victims to zero. In addition, the bullet causing fatal injuries of internal organs, internal and external bleeding and remains in the body. Typically, a single bullet to the torso / head enough to stop the enemy. Cases of death from shock. Sam cartridge designed specifically for the Belgian submachine gun FN P90, but it is also used in the PS90, AR-57, PP Singapore ST Kinetics CPW, VBR-Belgium CQBW gun FN Five-seveN. There are several types of the cartridge : standard (SS190), armor piercing steel core, tracer (SS196SR), subsonic (SB193: his bullet weighing 3.6 g is weakest killer stopped and the breakdown of the family from their patrons, as because of its low speed 305 m / s, the bullet does not change its direction in the tissue and can not be strong enough to break through the obstacles), single, expansive (SB195LF and SS197SR (?): has less penetrating ability than SS190, but the stopping power and great destructive power), increased speed with a hollow bullet poluobolochennye. Its characteristics caliber cartridge 5,7 × 28 mm superior to its main rival 4,6 × 30 mm, but the German and other delegations rejected the recommendation on the NATO standardizing cartridge 5,7 × 28 mm, resulting in that the standardization process of the cartridge in the NATO countries has been postponed.

From left to right SS190, SS196SR and SS197SR

Exterior cartridge SS190

SS196SR length of 40.5 mm

The expansive cartridge SS197SR sectional

A special 50-round magazine FN P90

Double-Barrel AO-63: a horror story for NATO

Increased firepower, shooting accuracy, rate of fire – these domestic gunsmiths tried to embody in missile systems SA-63, which became the most famous in the country of a double-barreled gun. Experts explain why the weapon had not been taken on board. Bright future In the 1960s, “Organization number seven”, later better known as TSNIITOCHMASH, began developing automatic weapons under the cartridge maloimpulsnogo 5,45h39mm. Forces of designers has been designed and developed an experimental machine AO-38, which had an unusual pattern – a clever system of automation, which increases the accuracy of fire weapons at an order of magnitude. The complex research and development project of AO-38, despite the constructive solutions, has revealed that further work on the project impractical. All work on the concept of “long-term” weapons has been postponed until better times. One important caveat to this project served as a patterning is in automatic mode, which, according to military experts, greatly exceed existing at the time the samples of small arms.