Ráže 12,7x108 Barrel length - 1005 mm, 8 grooves, 381 mm pitch Bullet weights 45 - 49 g, powder weight - 17 g, cartridge weight - 125-137 g Velocity Vo - 785 -820 m/s, Initial energy Eo - 17-19 kJ, recoil force max. 14 kN
Functional principle - gas extraction from the barrel, belt supply, double-sided, loading and retracting compressed air 3,5 MPa (35 atm.), electromagnetic actuation 28 V/ 8A . Firing cadence - 800-1100 rounds/min (influenced by the type of ammunition) Service life - 4000 rounds
Length 1423 mm, width 153 mm, height 155 mm
Weight 28 kg /without shock absorber/
The weapon is characterized by the use of a wedge-type slide and a lever-operated cartridge inserter, which allows to shorten the slide carrier travel and thus increase the cadence. Similar design features were successfully used in the 1950s by the designer Afanasiev in the AM-23 (23x115 calibre) and 2A14 (23x152 calibre) cannon.
URL : https://www.valka.cz/SOV-Afanasjev-A-12-7-t37556#378333
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