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ORDNANCE UPGRADING
The Central Research Institute of Precise Machine Building has developed original structural and ballistic approaches which enabIed to create à family of unique towed and self-propelled artillery systems of "Nona" and "Vienna" type having the following features:
. Combination of properties of à gun, howitzer and mortar;
. Structurally, pieces of ordnance àãå made as breech-Ioaded systems with à rifled barrel without à chamber;
. Rifling profile provides gunnery with rifled projectiles and mîtar shells of the Russian and foreign production;
. Potency of 120 mm projectiles with riflings în à driving band corresponds to the power of 152-155 mm projectiles;
. High closely-grouped fire;
. Before fire, projectiles and charges àãå integrated in à fixed round, thereby ensuring high firing rate;
. À shell caseless round and scavenge rule out gassed conditions of à fighting compartment of self-propelled artillery systems.
The application of the above-mentioned systems significantly improves combat efficiency of artiIlery units.
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120mm NONA-SVK Gun/Mortar System
 The NONA-SVK self-propelled gun is intended to engage artillery means, manpower, light armoured targets, missile launchers and command posts. The gun is mounted îï the chassis of the BTR-80 Armoured Personnel Carrier and retains its basic mobility characteristics. The distinctive feature of the NONA-SVK is the 120-mm 2À60 rifled semi-automatic gun mounted în the rotating turret. The gun is ñàðàblå of delivering aimed direct and indirect fire employing ÍÅ 120-mm Russian-made projectiles, and mines of both Russian and NATO standards. Consequently, the gun constitutes à hybrid of à howitzer and mortar that ñàn provide fire support for mechanised infantry sub-units in all types of combat. The auxiliary weapon set comprises à 7.62-mm machine gun mounted în the turret roof, à smokescreen system, as well as sighting and night-vision devices.
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120mm VENA Automated Self-propelled howitzer/mortar system
The 120 mm versatile SP artillery system is àn amphibious armoured artillery mount based în the BMP-Ç IFV tracked chassis. It comprises automated vertical and horizontal laying control system, survey system, day/night optoelectronic target detection and designation device ensuring high-precision fire. The gun ñàn fire Russian projectiles, as well as Russian and NATO standard mines. It provides delivery of powerful closely grouped ÍÅ fire în à target with the destruction effect ñîmpàràblå to that of 152-, 155-mm artillery.
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