Game: Name the cartridge

[AR-Tracker]

SP-4 7.62x41 143 grain

7.62mm SP-4 silent cartridge
designed to encapsulated the blast of propellant inside the cartridge case ( later design)

[J]

SP-4 7.62x41 143 grain

7.62mm SP-4 silent cartridge
designed to encapsulated the blast of propellant inside the cartridge case ( later design)

Correct (ish) Not a complete description.

There was a special flammable propellant, of which little is known by the western world. It was designed to be silent without a suppressor. It was lethal to 25m range, and used by the Soviet KGB and Spetznas. It worked by having a plunger between the primer/propellant and the bullet. The plunger had a disc, between the propellant and the bullet. The propellant would push the plunger forward rapidly, projecting the bullet, but the plunger would stick in and seal the throat of the casing after the bullet exit.

Because of this, no smoke, power, noise exited the casing. It made the casings dangerous to handle, until they cooled and the gasses compressed, but they were virtually silent without a suppressor on the firearm.

Here is a link to the firearm that fired it, still little known about it:

http://en.wikipedia.org/wiki/PSS_Silent_Pistol

[J]

Pick up with another round tomorrow. Bed time for me now.