OBPS "Nadezhda-R" is a feathered armor-piercing armor-piercing projectile for Soviet 125-mm tank guns developed in the USSR and put into service in 1983. Designed for firing at bunkers , armored flaps, armored caps and multi-layer structures of tank armor.
Description
The material of the shell body consists of martensitic steel and is an elongated swept element. The projectile has an expandable type master device. A ballistic cap is installed in the bow of the projectile, underneath is an armor-piercing damper. A tungsten alloy core is placed in the rear part of the projectile, and this arrangement of the core made it possible to reduce the likelihood of rebounding on inclined armored obstacles. A tail fin stabilizer is also installed in the tail part, consisting of five blades, a tracer is installed at the base of the stabilizer. Standard armor penetration from 2000 m along the normal 410 mm, at an angle of 60 ° - 200 mm (Armor penetration at an angle of 60 ° is indicated in terms of thickness of the target slabs To convert to an approximate penetration depth, multiply by 2). The average penetration from 2000 meters normal is 450 mm steel. Projectile length: 558 mm. The mass of the shell without a host device: 4485 g.